313244231858 has 4 divisors (see below), whose sum is σ = 469866347790. Its totient is φ = 156622115928.

The previous prime is 313244231837. The next prime is 313244231887. The reversal of 313244231858 is 858132442313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 858132442313 = 29587 ⋅29003699.

It can be written as a sum of positive squares in only one way, i.e., 293435639809 + 19808592049 = 541697^2 + 140743^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78311057963 + ... + 78311057966.

Almost surely, 2^313244231858 is an apocalyptic number.

313244231858 is a deficient number, since it is larger than the sum of its proper divisors (156622115932).

313244231858 is a wasteful number, since it uses less digits than its factorization.

313244231858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156622115931.

The product of its digits is 552960, while the sum is 44.

The spelling of 313244231858 in words is "three hundred thirteen billion, two hundred forty-four million, two hundred thirty-one thousand, eight hundred fifty-eight".