313232621 has 16 divisors (see below), whose sum is σ = 347061120. Its totient is φ = 280912320.

The previous prime is 313232609. The next prime is 313232629. The reversal of 313232621 is 126232313.

It is not a de Polignac number, because 313232621 - 2¹⁴ = 313216237 is a prime.

It is a super-2 number, since 2×313232621² = 196229349717059282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313232629) 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, 63440 + ... + 68198.

It is an arithmetic number, because the mean of its divisors is an integer number (21691320).

Almost surely, 2^313232621 is an apocalyptic number.

It is an amenable number.

313232621 is a deficient number, since it is larger than the sum of its proper divisors (33828499).

313232621 is a wasteful number, since it uses less digits than its factorization.

313232621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916.

The product of its digits is 1296, while the sum is 23.

The square root of 313232621 is about 17698.3790500712. The cubic root of 313232621 is about 679.1342941014.

Adding to 313232621 its reverse (126232313), we get a palindrome (439464934).

It can be divided in two parts, 3132 and 32621, that added together give a palindrome (35753).

The spelling of 313232621 in words is "three hundred thirteen million, two hundred thirty-two thousand, six hundred twenty-one".