312312330331 has 4 divisors (see below), whose sum is σ = 322386921664. Its totient is φ = 302237739000.

The previous prime is 312312330313. The next prime is 312312330377. The reversal of 312312330331 is 133033213213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312312330331 - 2²³ = 312303941723 is a prime.

It is a super-2 number, since 2×312312330331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312312330296 and 312312330305.

It is not an unprimeable number, because it can be changed into a prime (312312330301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5037295620 + ... + 5037295681.

It is an arithmetic number, because the mean of its divisors is an integer number (80596730416).

Almost surely, 2^312312330331 is an apocalyptic number.

312312330331 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

312312330331 is a deficient number, since it is larger than the sum of its proper divisors (10074591333).

312312330331 is a wasteful number, since it uses less digits than its factorization.

312312330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074591332.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 312312330331 its reverse (133033213213), we get a palindrome (445345543544).

The spelling of 312312330331 in words is "three hundred twelve billion, three hundred twelve million, three hundred thirty thousand, three hundred thirty-one".