123556743260 has 12 divisors (see below), whose sum is σ = 259469160888. Its totient is φ = 49422697296.

The previous prime is 123556743239. The next prime is 123556743269. The reversal of 123556743260 is 62347655321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123556743269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088918562 + ... + 3088918601.

It is an arithmetic number, because the mean of its divisors is an integer number (21622430074).

Almost surely, 2^123556743260 is an apocalyptic number.

123556743260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123556743260 is an abundant number, since it is smaller than the sum of its proper divisors (135912417628).

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

123556743260 is a wasteful number, since it uses less digits than its factorization.

123556743260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177837172 (or 6177837170 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 123556743260 in words is "one hundred twenty-three billion, five hundred fifty-six million, seven hundred forty-three thousand, two hundred sixty".