313022421 has 8 divisors (see below), whose sum is σ = 463736960. Its totient is φ = 208681596.

The previous prime is 313022417. The next prime is 313022431. The reversal of 313022421 is 124220313.

It is not a de Polignac number, because 313022421 - 2² = 313022417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313022394 and 313022403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313022431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5796685 + ... + 5796738.

It is an arithmetic number, because the mean of its divisors is an integer number (57967120).

Almost surely, 2^313022421 is an apocalyptic number.

It is an amenable number.

313022421 is a deficient number, since it is larger than the sum of its proper divisors (150714539).

313022421 is a wasteful number, since it uses less digits than its factorization.

313022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11593432 (or 11593426 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 313022421 is about 17692.4396565313. The cubic root of 313022421 is about 678.9823452904.

Adding to 313022421 its reverse (124220313), we get a palindrome (437242734).

The spelling of 313022421 in words is "three hundred thirteen million, twenty-two thousand, four hundred twenty-one".