313011231 has 16 divisors (see below), whose sum is σ = 461601504. Its totient is φ = 187415424.

The previous prime is 313011217. The next prime is 313011241. The reversal of 313011231 is 132110313.

It is not a de Polignac number, because 313011231 - 2⁵ = 313011199 is a prime.

It is a super-2 number, since 2×313011231² = 195952061464270722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313011231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313011241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107016 + ... + 109901.

It is an arithmetic number, because the mean of its divisors is an integer number (28850094).

Almost surely, 2^313011231 is an apocalyptic number.

313011231 is a deficient number, since it is larger than the sum of its proper divisors (148590273).

313011231 is a wasteful number, since it uses less digits than its factorization.

313011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216970.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 313011231 is about 17692.1234169333. The cubic root of 313011231 is about 678.9742543865.

Adding to 313011231 its reverse (132110313), we get a palindrome (445121544).

The spelling of 313011231 in words is "three hundred thirteen million, eleven thousand, two hundred thirty-one".