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1231102003130 = 251719381146131
BaseRepresentation
bin10001111010100011011…
…001011100011110111010
311100200200121121120110022
4101322203121130132322
5130132244103100010
62341321020250442
7154641566240006
oct21724331343672
94320617546408
101231102003130
1143511aa9340a
1217a7196a0a22
138c12808245c
144382b073706
1522055443d55
hex11ea365c7ba

1231102003130 has 32 divisors (see below), whose sum is σ = 2469826935360. Its totient is φ = 439080341760.

The previous prime is 1231102003123. The next prime is 1231102003163. The reversal of 1231102003130 is 313002011321.

It is a super-2 number, since 2×12311020031302 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1231102003099 and 1231102003108.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 190569836 + ... + 190576295.

It is an arithmetic number, because the mean of its divisors is an integer number (77182091730).

Almost surely, 21231102003130 is an apocalyptic number.

1231102003130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231102003130 is an abundant number, since it is smaller than the sum of its proper divisors (1238724932230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231102003130 is a wasteful number, since it uses less digits than its factorization.

1231102003130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381146174.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1231102003130 its reverse (313002011321), we get a palindrome (1544104014451).

The spelling of 1231102003130 in words is "one trillion, two hundred thirty-one billion, one hundred two million, three thousand, one hundred thirty".

Divisors: 1 2 5 10 17 19 34 38 85 95 170 190 323 646 1615 3230 381146131 762292262 1905730655 3811461310 6479484227 7241776489 12958968454 14483552978 32397421135 36208882445 64794842270 72417764890 123110200313 246220400626 615551001565 1231102003130