313532421 has 16 divisors (see below), whose sum is σ = 424639488. Its totient is φ = 205747200.

The previous prime is 313532341. The next prime is 313532437. The reversal of 313532421 is 124235313.

It is not a de Polignac number, because 313532421 - 2¹⁴ = 313516037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313532391 and 313532400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313532491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52761 + ... + 58401.

It is an arithmetic number, because the mean of its divisors is an integer number (26539968).

Almost surely, 2^313532421 is an apocalyptic number.

It is an amenable number.

313532421 is a deficient number, since it is larger than the sum of its proper divisors (111107067).

313532421 is a wasteful number, since it uses less digits than its factorization.

313532421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932.

The product of its digits is 2160, while the sum is 24.

The square root of 313532421 is about 17706.8467266196. The cubic root of 313532421 is about 679.3508951455.

Adding to 313532421 its reverse (124235313), we get a palindrome (437767734).

The spelling of 313532421 in words is "three hundred thirteen million, five hundred thirty-two thousand, four hundred twenty-one".