313223121303421 has 12 divisors (see below), whose sum is σ = 365533170780960. Its totient is φ = 267613691132760.

The previous prime is 313223121303413. The next prime is 313223121303511. The reversal of 313223121303421 is 124303121322313.

It is not a de Polignac number, because 313223121303421 - 2³ = 313223121303413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313223121303121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10277008231 + ... + 10277038708.

It is an arithmetic number, because the mean of its divisors is an integer number (30461097565080).

Almost surely, 2^{313223121303421} is an apocalyptic number.

It is an amenable number.

313223121303421 is a deficient number, since it is larger than the sum of its proper divisors (52310049477539).

313223121303421 is a wasteful number, since it uses less digits than its factorization.

313223121303421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20554047264 (or 20554047257 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 313223121303421 its reverse (124303121322313), we get a palindrome (437526242625734).

The spelling of 313223121303421 in words is "three hundred thirteen trillion, two hundred twenty-three billion, one hundred twenty-one million, three hundred three thousand, four hundred twenty-one".