312131320201 has 8 divisors (see below), whose sum is σ = 315213223104. Its totient is φ = 309050407920.

The previous prime is 312131320187. The next prime is 312131320213. The reversal of 312131320201 is 102023131213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312131320201 - 2²⁵ = 312097765769 is a prime.

It is a super-2 number, since 2×312131320201² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312131320231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393786 + ... + 882796.

It is an arithmetic number, because the mean of its divisors is an integer number (39401652888).

Almost surely, 2^312131320201 is an apocalyptic number.

It is an amenable number.

312131320201 is a deficient number, since it is larger than the sum of its proper divisors (3081902903).

312131320201 is a wasteful number, since it uses less digits than its factorization.

312131320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495311.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312131320201 its reverse (102023131213), we get a palindrome (414154451414).

The spelling of 312131320201 in words is "three hundred twelve billion, one hundred thirty-one million, three hundred twenty thousand, two hundred one".