312303301231 has 4 divisors (see below), whose sum is σ = 320743931032. Its totient is φ = 303862671432.

The previous prime is 312303301213. The next prime is 312303301241. The reversal of 312303301231 is 132103303213.

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 312303301231 - 2⁷ = 312303301103 is a prime.

It is a super-2 number, since 2×312303301231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312303301241) 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, 4220314845 + ... + 4220314918.

It is an arithmetic number, because the mean of its divisors is an integer number (80185982758).

Almost surely, 2^312303301231 is an apocalyptic number.

312303301231 is a deficient number, since it is larger than the sum of its proper divisors (8440629801).

312303301231 is an equidigital number, since it uses as much as digits as its factorization.

312303301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440629800.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 312303301231 its reverse (132103303213), we get a palindrome (444406604444).

The spelling of 312303301231 in words is "three hundred twelve billion, three hundred three million, three hundred one thousand, two hundred thirty-one".