123038856880 has 40 divisors (see below), whose sum is σ = 287128832400. Its totient is φ = 49032576768.

The previous prime is 123038856859. The next prime is 123038856881. The reversal of 123038856880 is 88658830321.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (123038856881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2837190 + ... + 2880229.

It is an arithmetic number, because the mean of its divisors is an integer number (7178220810).

Almost surely, 2^123038856880 is an apocalyptic number.

123038856880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123038856880 is an abundant number, since it is smaller than the sum of its proper divisors (164089975520).

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

123038856880 is a wasteful number, since it uses less digits than its factorization.

123038856880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717701 (or 5717695 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 123038856880 in words is "one hundred twenty-three billion, thirty-eight million, eight hundred fifty-six thousand, eight hundred eighty".