2312312331 has 32 divisors (see below), whose sum is σ = 3712089600. Its totient is φ = 1250726400.

The previous prime is 2312312329. The next prime is 2312312371. The reversal of 2312312331 is 1332132132.

It is not a de Polignac number, because 2312312331 - 2¹ = 2312312329 is a prime.

It is a super-3 number, since 3×2312312331³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2312312298 and 2312312307.

It is not an unprimeable number, because it can be changed into a prime (2312312371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824131 + ... + 826931.

It is an arithmetic number, because the mean of its divisors is an integer number (116002800).

Almost surely, 2^2312312331 is an apocalyptic number.

2312312331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2312312331 is a deficient number, since it is larger than the sum of its proper divisors (1399777269).

2312312331 is a wasteful number, since it uses less digits than its factorization.

2312312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899.

The product of its digits is 648, while the sum is 21.

The square root of 2312312331 is about 48086.5088252412. The cubic root of 2312312331 is about 1322.3573446373.

Adding to 2312312331 its reverse (1332132132), we get a palindrome (3644444463).

The spelling of 2312312331 in words is "two billion, three hundred twelve million, three hundred twelve thousand, three hundred thirty-one".