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1231023044141 = 1143791071512039
BaseRepresentation
bin10001111010011110101…
…100001111011000101101
311100200111010001001002022
4101322132230033120231
5130132113344403031
62341305120035525
7154636620140612
oct21723654173055
94320433031068
101231023044141
1143508a463350
1217a6b7162ba5
138c1148c7b67
144382079c509
152204d54897b
hex11e9eb0f62d

1231023044141 has 64 divisors (see below), whose sum is σ = 1414560153600. Its totient is φ = 1061561592000.

The previous prime is 1231023044137. The next prime is 1231023044143. The reversal of 1231023044141 is 1414403201321.

It is a cyclic number.

It is not a de Polignac number, because 1231023044141 - 22 = 1231023044137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231023044141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231023044143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 603737600 + ... + 603739638.

It is an arithmetic number, because the mean of its divisors is an integer number (22102502400).

Almost surely, 21231023044141 is an apocalyptic number.

1231023044141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1231023044141 is a deficient number, since it is larger than the sum of its proper divisors (183537109459).

1231023044141 is a wasteful number, since it uses less digits than its factorization.

1231023044141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1231023044141 its reverse (1414403201321), we get a palindrome (2645426245462).

The spelling of 1231023044141 in words is "one trillion, two hundred thirty-one billion, twenty-three million, forty-four thousand, one hundred forty-one".

Divisors: 1 11 43 79 107 151 473 869 1177 1661 2039 3397 4601 6493 8453 11929 16157 22429 37367 50611 71423 87677 92983 131219 161081 177727 218173 307889 363479 512947 694751 964447 1276403 1771891 2399903 3386779 3998269 5642417 6926483 7642261 9381439 13239227 14040433 17235667 24323231 32944123 54885329 76191313 103195829 145631497 189592337 267555541 362385353 603738619 741133681 1045898933 1416597289 2602585717 8152470491 11504888263 15582570179 28628442887 111911185831 1231023044141