312304434231 has 16 divisors (see below), whose sum is σ = 417023873280. Its totient is φ = 207894123840.

The previous prime is 312304434229. The next prime is 312304434251. The reversal of 312304434231 is 132434403213.

It is a happy number.

It is not a de Polignac number, because 312304434231 - 2¹ = 312304434229 is a prime.

It is a super-2 number, since 2×312304434231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312304434251) 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, 9631476 + ... + 9663846.

It is an arithmetic number, because the mean of its divisors is an integer number (26063992080).

Almost surely, 2^312304434231 is an apocalyptic number.

312304434231 is a deficient number, since it is larger than the sum of its proper divisors (104719439049).

312304434231 is a wasteful number, since it uses less digits than its factorization.

312304434231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37046.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 312304434231 its reverse (132434403213), we get a palindrome (444738837444).

The spelling of 312304434231 in words is "three hundred twelve billion, three hundred four million, four hundred thirty-four thousand, two hundred thirty-one".