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1230100023020 = 2251115793541079
BaseRepresentation
bin10001111001100111101…
…011001100011011101100
311100121002210012201010212
4101321213223030123230
5130123221101214040
62341033344321552
7154605011451131
oct21714753143354
94317083181125
101230100023020
11434756437980
1217a49a0132b8
138bcc8600c0b
1443773d6c588
1521ee74c0d65
hex11e67acc6ec

1230100023020 has 48 divisors (see below), whose sum is σ = 2819832825600. Its totient is φ = 447025686720.

The previous prime is 1230100023013. The next prime is 1230100023029. The reversal of 1230100023020 is 203200010321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230100022986 and 1230100023004.

It is not an unprimeable number, because it can be changed into a prime (1230100023029) 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 15 ways as a sum of consecutive naturals, for example, 1423160 + ... + 2117919.

It is an arithmetic number, because the mean of its divisors is an integer number (58746517200).

Almost surely, 21230100023020 is an apocalyptic number.

1230100023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230100023020 is an abundant number, since it is smaller than the sum of its proper divisors (1589732802580).

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

1230100023020 is a wasteful number, since it uses less digits than its factorization.

1230100023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542678 (or 3542676 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1230100023020 its reverse (203200010321), we get a palindrome (1433300033341).

The spelling of 1230100023020 in words is "one trillion, two hundred thirty billion, one hundred million, twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1579 3158 6316 7895 15790 17369 31580 34738 69476 86845 173690 347380 3541079 7082158 14164316 17705395 35410790 38951869 70821580 77903738 155807476 194759345 389518690 779037380 5591363741 11182727482 22365454964 27956818705 55913637410 61505001151 111827274820 123010002302 246020004604 307525005755 615050011510 1230100023020