312356312140 has 12 divisors (see below), whose sum is σ = 655948255536. Its totient is φ = 124942524848.

The previous prime is 312356312123. The next prime is 312356312173. The reversal of 312356312140 is 41213653213.

It is a super-2 number, since 2×312356312140² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7808907784 + ... + 7808907823.

It is an arithmetic number, because the mean of its divisors is an integer number (54662354628).

Almost surely, 2^312356312140 is an apocalyptic number.

It is an amenable number.

312356312140 is an abundant number, since it is smaller than the sum of its proper divisors (343591943396).

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

312356312140 is a wasteful number, since it uses less digits than its factorization.

312356312140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617815616 (or 15617815614 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 312356312140 its reverse (41213653213), we get a palindrome (353569965353).

The spelling of 312356312140 in words is "three hundred twelve billion, three hundred fifty-six million, three hundred twelve thousand, one hundred forty".