123100034312 has 16 divisors (see below), whose sum is σ = 231645826860. Its totient is φ = 61327813824.

The previous prime is 123100034303. The next prime is 123100034341. The reversal of 123100034312 is 213430001321.

It can be written as a sum of positive squares in 2 ways, for example, as 122938591876 + 161442436 = 350626^2 + 12706^2 .

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 3 ways as a sum of consecutive naturals, for example, 27773063 + ... + 27777494.

Almost surely, 2^123100034312 is an apocalyptic number.

It is an amenable number.

123100034312 is a deficient number, since it is larger than the sum of its proper divisors (108545792548).

123100034312 is a wasteful number, since it uses less digits than its factorization.

123100034312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55550840 (or 55550836 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123100034312 its reverse (213430001321), we get a palindrome (336530035633).

The spelling of 123100034312 in words is "one hundred twenty-three billion, one hundred million, thirty-four thousand, three hundred twelve".