201312512 has 36 divisors (see below), whose sum is σ = 414817536. Its totient is φ = 97405440.

The previous prime is 201312499. The next prime is 201312563. The reversal of 201312512 is 215213102.

It is a happy number.

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, 4748 + ... + 20619.

Almost surely, 2^201312512 is an apocalyptic number.

It is an amenable number.

201312512 is an abundant number, since it is smaller than the sum of its proper divisors (213505024).

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

201312512 is an equidigital number, since it uses as much as digits as its factorization.

201312512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25414 (or 25400 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 201312512 is about 14188.4640465415. The cubic root of 201312512 is about 586.0800288299.

Adding to 201312512 its reverse (215213102), we get a palindrome (416525614).

The spelling of 201312512 in words is "two hundred one million, three hundred twelve thousand, five hundred twelve".