312130321311 has 16 divisors (see below), whose sum is σ = 423247720320. Its totient is φ = 204550237920.

The previous prime is 312130321309. The next prime is 312130321313. The reversal of 312130321311 is 113123031213.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (312130321309) and next prime (312130321313).

It is not a de Polignac number, because 312130321311 - 2¹ = 312130321309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130321313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7193421 + ... + 7236681.

It is an arithmetic number, because the mean of its divisors is an integer number (26452982520).

Almost surely, 2^312130321311 is an apocalyptic number.

312130321311 is a deficient number, since it is larger than the sum of its proper divisors (111117399009).

312130321311 is a wasteful number, since it uses less digits than its factorization.

312130321311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84086.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 312130321311 its reverse (113123031213), we get a palindrome (425253352524).

The spelling of 312130321311 in words is "three hundred twelve billion, one hundred thirty million, three hundred twenty-one thousand, three hundred eleven".