123233153672840 has 16 divisors (see below), whose sum is σ = 277274595763980. Its totient is φ = 49293261469120.

The previous prime is 123233153672807. The next prime is 123233153672899. The reversal of 123233153672840 is 48276351332321.

It can be written as a sum of positive squares in 2 ways, for example, as 121740373094404 + 1492780578436 = 11033602^2 + 1221794^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540414420871 + ... + 1540414420950.

Almost surely, 2^{123233153672840} is an apocalyptic number.

123233153672840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123233153672840 is an abundant number, since it is smaller than the sum of its proper divisors (154041442091140).

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

123233153672840 is a wasteful number, since it uses less digits than its factorization.

123233153672840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080828841832 (or 3080828841828 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 123233153672840 in words is "one hundred twenty-three trillion, two hundred thirty-three billion, one hundred fifty-three million, six hundred seventy-two thousand, eight hundred forty".