312020400052 has 12 divisors (see below), whose sum is σ = 557653481280. Its totient is φ = 152690833976.

The previous prime is 312020400047. The next prime is 312020400067. The reversal of 312020400052 is 250004020213.

It is a super-2 number, since 2×312020400052² (a number of 24 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 3 ways as a sum of consecutive naturals, for example, 829841302 + ... + 829841677.

It is an arithmetic number, because the mean of its divisors is an integer number (46471123440).

Almost surely, 2^312020400052 is an apocalyptic number.

It is an amenable number.

312020400052 is a deficient number, since it is larger than the sum of its proper divisors (245633081228).

312020400052 is a wasteful number, since it uses less digits than its factorization.

312020400052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659683030 (or 1659683028 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 312020400052 its reverse (250004020213), we get a palindrome (562024420265).

The spelling of 312020400052 in words is "three hundred twelve billion, twenty million, four hundred thousand, fifty-two".