123125911110 has 32 divisors (see below), whose sum is σ = 328335763680. Its totient is φ = 32833576224.

The previous prime is 123125911079. The next prime is 123125911121. The reversal of 123125911110 is 11119521321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228010677 + ... + 228011216.

It is an arithmetic number, because the mean of its divisors is an integer number (10260492615).

Almost surely, 2^123125911110 is an apocalyptic number.

123125911110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123125911110 is an abundant number, since it is smaller than the sum of its proper divisors (205209852570).

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

123125911110 is a wasteful number, since it uses less digits than its factorization.

123125911110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456021909 (or 456021903 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 27.

The spelling of 123125911110 in words is "one hundred twenty-three billion, one hundred twenty-five million, nine hundred eleven thousand, one hundred ten".