123331231113512 has 32 divisors (see below), whose sum is σ = 236197312243200. Its totient is φ = 60345627015744.

The previous prime is 123331231113407. The next prime is 123331231113547. The reversal of 123331231113512 is 215311132133321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18757328 + ... + 24464255.

It is an arithmetic number, because the mean of its divisors is an integer number (7381166007600).

Almost surely, 2^{123331231113512} is an apocalyptic number.

It is an amenable number.

123331231113512 is a deficient number, since it is larger than the sum of its proper divisors (112866081129688).

123331231113512 is a wasteful number, since it uses less digits than its factorization.

123331231113512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43229225 (or 43229221 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

Adding to 123331231113512 its reverse (215311132133321), we get a palindrome (338642363246833).

The spelling of 123331231113512 in words is "one hundred twenty-three trillion, three hundred thirty-one billion, two hundred thirty-one million, one hundred thirteen thousand, five hundred twelve".