313355425021 has 4 divisors (see below), whose sum is σ = 313467701344. Its totient is φ = 313243148700.

The previous prime is 313355425013. The next prime is 313355425051. The reversal of 313355425021 is 120524553313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120524553313 = 233 ⋅517272761.

It is a cyclic number.

It is not a de Polignac number, because 313355425021 - 2³ = 313355425013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313355425051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56133975 + ... + 56139556.

It is an arithmetic number, because the mean of its divisors is an integer number (78366925336).

Almost surely, 2^313355425021 is an apocalyptic number.

It is an amenable number.

313355425021 is a deficient number, since it is larger than the sum of its proper divisors (112276323).

313355425021 is a wasteful number, since it uses less digits than its factorization.

313355425021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112276322.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 313355425021 its reverse (120524553313), we get a palindrome (433879978334).

The spelling of 313355425021 in words is "three hundred thirteen billion, three hundred fifty-five million, four hundred twenty-five thousand, twenty-one".