201312012252 has 48 divisors (see below), whose sum is σ = 519532886432. Its totient is φ = 60268043520.

The previous prime is 201312012211. The next prime is 201312012299. The reversal of 201312012252 is 252210213102.

201312012252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201312012252² (a number of 23 digits) contains 22 as substring.

It is a congruent 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, 17432899 + ... + 17444442.

Almost surely, 2^201312012252 is an apocalyptic number.

It is an amenable number.

201312012252 is an abundant number, since it is smaller than the sum of its proper divisors (318220874180).

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

201312012252 is a wasteful number, since it uses less digits than its factorization.

201312012252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34877398 (or 34877396 counting only the distinct ones).

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

Adding to 201312012252 its reverse (252210213102), we get a palindrome (453522225354).

The spelling of 201312012252 in words is "two hundred one billion, three hundred twelve million, twelve thousand, two hundred fifty-two".