201002312 has 24 divisors (see below), whose sum is σ = 438411510. Its totient is φ = 86143680.

The previous prime is 201002303. The next prime is 201002323. The reversal of 201002312 is 213200102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 187854436 + 13147876 = 13706^2 + 3626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201002293 and 201002302.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255989 + ... + 256772.

Almost surely, 2^201002312 is an apocalyptic number.

It is an amenable number.

201002312 is an abundant number, since it is smaller than the sum of its proper divisors (237409198).

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

201002312 is a wasteful number, since it uses less digits than its factorization.

201002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512781 (or 512770 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 201002312 is about 14177.5284164765. The cubic root of 201002312 is about 585.7788462191.

Adding to 201002312 its reverse (213200102), we get a palindrome (414202414).

The spelling of 201002312 in words is "two hundred one million, two thousand, three hundred twelve".