15131102123212 has 12 divisors (see below), whose sum is σ = 26485687177936. Its totient is φ = 7563762929520.

The previous prime is 15131102123197. The next prime is 15131102123231. The reversal of 15131102123212 is 21232120113151.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447013983 + ... + 447047830.

Almost surely, 2^{15131102123212} is an apocalyptic number.

It is an amenable number.

15131102123212 is a deficient number, since it is larger than the sum of its proper divisors (11354585054724).

15131102123212 is a wasteful number, since it uses less digits than its factorization.

15131102123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894066048 (or 894066046 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 15131102123212 its reverse (21232120113151), we get a palindrome (36363222236363).

The spelling of 15131102123212 in words is "fifteen trillion, one hundred thirty-one billion, one hundred two million, one hundred twenty-three thousand, two hundred twelve".