312540355042431 has 16 divisors (see below), whose sum is σ = 418279421841408. Its totient is φ = 207580840538400.

The previous prime is 312540355042427. The next prime is 312540355042463. The reversal of 312540355042431 is 134240553045213.

It is not a de Polignac number, because 312540355042431 - 2² = 312540355042427 is a prime.

It is a super-2 number, since 2×312540355042431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312540355442431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6281266 + ... + 25778576.

It is an arithmetic number, because the mean of its divisors is an integer number (26142463865088).

Almost surely, 2^{312540355042431} is an apocalyptic number.

312540355042431 is a deficient number, since it is larger than the sum of its proper divisors (105739066798977).

312540355042431 is a wasteful number, since it uses less digits than its factorization.

312540355042431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19517302.

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 312540355042431 in words is "three hundred twelve trillion, five hundred forty billion, three hundred fifty-five million, forty-two thousand, four hundred thirty-one".