312312331002 has 64 divisors (see below), whose sum is σ = 715260881664. Its totient is φ = 89056765440.

The previous prime is 312312330989. The next prime is 312312331003. The reversal of 312312331002 is 200133213213.

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

It is a self number, because there is not a number n which added to its sum of digits gives 312312331002.

It is not an unprimeable number, because it can be changed into a prime (312312331003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59361052 + ... + 59366312.

It is an arithmetic number, because the mean of its divisors is an integer number (11175951276).

Almost surely, 2^312312331002 is an apocalyptic number.

312312331002 is an abundant number, since it is smaller than the sum of its proper divisors (402948550662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312312331002 is a wasteful number, since it uses less digits than its factorization.

312312331002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7783.

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

Adding to 312312331002 its reverse (200133213213), we get a palindrome (512445544215).

The spelling of 312312331002 in words is "three hundred twelve billion, three hundred twelve million, three hundred thirty-one thousand, two".