12531605626312 has 32 divisors (see below), whose sum is σ = 25457502549600. Its totient is φ = 5760081379584.

The previous prime is 12531605626277. The next prime is 12531605626327. The reversal of 12531605626312 is 21362650613521.

It is a super-2 number, since 2×12531605626312² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 1071437862 + ... + 1071449557.

It is an arithmetic number, because the mean of its divisors is an integer number (795546954675).

Almost surely, 2^{12531605626312} is an apocalyptic number.

It is an amenable number.

12531605626312 is an abundant number, since it is smaller than the sum of its proper divisors (12925896923288).

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

12531605626312 is a wasteful number, since it uses less digits than its factorization.

12531605626312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142887485 (or 2142887481 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 12531605626312 in words is "twelve trillion, five hundred thirty-one billion, six hundred five million, six hundred twenty-six thousand, three hundred twelve".