252131400012 has 24 divisors (see below), whose sum is σ = 589351565376. Its totient is φ = 83894519248.

The previous prime is 252131399969. The next prime is 252131400047. The reversal of 252131400012 is 210004131252.

It is a super-2 number, since 2×252131400012² (a number of 24 digits) contains 22 as substring.

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, 18653058 + ... + 18666569.

It is an arithmetic number, because the mean of its divisors is an integer number (24556315224).

Almost surely, 2^252131400012 is an apocalyptic number.

It is an amenable number.

252131400012 is an abundant number, since it is smaller than the sum of its proper divisors (337220165364).

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

252131400012 is a wasteful number, since it uses less digits than its factorization.

252131400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37320197 (or 37320195 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 252131400012 its reverse (210004131252), we get a palindrome (462135531264).

The spelling of 252131400012 in words is "two hundred fifty-two billion, one hundred thirty-one million, four hundred thousand, twelve".