123315334131212 has 48 divisors (see below), whose sum is σ = 228357434578560. Its totient is φ = 58104624872448.

The previous prime is 123315334131137. The next prime is 123315334131299. The reversal of 123315334131212 is 212131433513321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164538443 + ... + 165286205.

It is an arithmetic number, because the mean of its divisors is an integer number (4757446553720).

Almost surely, 2^{123315334131212} is an apocalyptic number.

It is an amenable number.

123315334131212 is a deficient number, since it is larger than the sum of its proper divisors (105042100447348).

123315334131212 is a wasteful number, since it uses less digits than its factorization.

123315334131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759222 (or 759220 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

Adding to 123315334131212 its reverse (212131433513321), we get a palindrome (335446767644533).

The spelling of 123315334131212 in words is "one hundred twenty-three trillion, three hundred fifteen billion, three hundred thirty-four million, one hundred thirty-one thousand, two hundred twelve".