312406131620 has 96 divisors (see below), whose sum is σ = 766131609600. Its totient is φ = 105798960000.

The previous prime is 312406131559. The next prime is 312406131659. The reversal of 312406131620 is 26131604213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386756 + ... + 879995.

It is an arithmetic number, because the mean of its divisors is an integer number (7980537600).

Almost surely, 2^312406131620 is an apocalyptic number.

It is an amenable number.

312406131620 is an abundant number, since it is smaller than the sum of its proper divisors (453725477980).

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

312406131620 is a wasteful number, since it uses less digits than its factorization.

312406131620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266849 (or 1266847 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 312406131620 its reverse (26131604213), we get a palindrome (338537735833).

The spelling of 312406131620 in words is "three hundred twelve billion, four hundred six million, one hundred thirty-one thousand, six hundred twenty".