312130312000 has 112 divisors (see below), whose sum is σ = 832451819472. Its totient is φ = 115248076800.

The previous prime is 312130311943. The next prime is 312130312069. The reversal of 312130312000 is 213031213.

It can be written as a sum of positive squares in 8 ways, for example, as 81745671744 + 230384640256 = 285912^2 + 479984^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1396627 + ... + 1604626.

It is an arithmetic number, because the mean of its divisors is an integer number (7432605531).

Almost surely, 2^312130312000 is an apocalyptic number.

It is an amenable number.

312130312000 is an abundant number, since it is smaller than the sum of its proper divisors (520321507472).

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

312130312000 is a wasteful number, since it uses less digits than its factorization.

312130312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001293 (or 3001273 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 312130312000 its reverse (213031213), we get a palindrome (312343343213).

The spelling of 312130312000 in words is "three hundred twelve billion, one hundred thirty million, three hundred twelve thousand".