12312001310 has 32 divisors (see below), whose sum is σ = 25337318400. Its totient is φ = 4219628832.

The previous prime is 12312001309. The next prime is 12312001313. The reversal of 12312001310 is 1310021321.

It is a super-2 number, since 2×12312001310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312001313) 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, 156347 + ... + 221513.

It is an arithmetic number, because the mean of its divisors is an integer number (791791200).

Almost surely, 2^12312001310 is an apocalyptic number.

12312001310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312001310 is an abundant number, since it is smaller than the sum of its proper divisors (13025317090).

12312001310 is a wasteful number, since it uses less digits than its factorization.

12312001310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67880.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12312001310 its reverse (1310021321), we get a palindrome (13622022631).

The spelling of 12312001310 in words is "twelve billion, three hundred twelve million, one thousand, three hundred ten".