201331200312 has 48 divisors (see below), whose sum is σ = 594842185080. Its totient is φ = 61009454400.

The previous prime is 201331200299. The next prime is 201331200349. The reversal of 201331200312 is 213002133102.

201331200312 is a `hidden beast` number, since 2 + 0 + 1 + 331 + 20 + 0 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127102239 + ... + 127103822.

Almost surely, 2^201331200312 is an apocalyptic number.

201331200312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201331200312 is an abundant number, since it is smaller than the sum of its proper divisors (393510984768).

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

201331200312 is a wasteful number, since it uses less digits than its factorization.

201331200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254206084 (or 254206077 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 201331200312 its reverse (213002133102), we get a palindrome (414333333414).

The spelling of 201331200312 in words is "two hundred one billion, three hundred thirty-one million, two hundred thousand, three hundred twelve".