312801792242 has 16 divisors (see below), whose sum is σ = 513933980760. Its totient is φ = 142124951808.

The previous prime is 312801792227. The next prime is 312801792299. The reversal of 312801792242 is 242297108213.

It can be written as a sum of positive squares in 4 ways, for example, as 299593117201 + 13208675041 = 547351^2 + 114929^2 .

It is a super-2 number, since 2×312801792242² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312801792242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158620613 + ... + 158622584.

Almost surely, 2^312801792242 is an apocalyptic number.

312801792242 is a deficient number, since it is larger than the sum of its proper divisors (201132188518).

312801792242 is a wasteful number, since it uses less digits than its factorization.

312801792242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317243245.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 312801792242 in words is "three hundred twelve billion, eight hundred one million, seven hundred ninety-two thousand, two hundred forty-two".