312133322320 has 40 divisors (see below), whose sum is σ = 727164396000. Its totient is φ = 124603105920.

The previous prime is 312133322317. The next prime is 312133322321. The reversal of 312133322320 is 23223331213.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133322321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869566 + ... + 3949405.

It is an arithmetic number, because the mean of its divisors is an integer number (18179109900).

Almost surely, 2^312133322320 is an apocalyptic number.

It is an amenable number.

312133322320 is an abundant number, since it is smaller than the sum of its proper divisors (415031073680).

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

312133322320 is a wasteful number, since it uses less digits than its factorization.

312133322320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819483 (or 7819477 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 312133322320 its reverse (23223331213), we get a palindrome (335356653533).

It can be divided in two parts, 31213 and 3322320, that added together give a palindrome (3353533).

The spelling of 312133322320 in words is "three hundred twelve billion, one hundred thirty-three million, three hundred twenty-two thousand, three hundred twenty".