313011432 has 32 divisors (see below), whose sum is σ = 869476800. Its totient is φ = 104337072.

The previous prime is 313011431. The next prime is 313011443. The reversal of 313011432 is 234110313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (313011431) 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, 724348 + ... + 724779.

It is an arithmetic number, because the mean of its divisors is an integer number (27171150).

Almost surely, 2^313011432 is an apocalyptic number.

It is an amenable number.

313011432 is an abundant number, since it is smaller than the sum of its proper divisors (556465368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313011432 is a wasteful number, since it uses less digits than its factorization.

313011432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449142 (or 1449132 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 313011432 is about 17692.1290974263. The cubic root of 313011432 is about 678.9743997208.

Adding to 313011432 its reverse (234110313), we get a palindrome (547121745).

The spelling of 313011432 in words is "three hundred thirteen million, eleven thousand, four hundred thirty-two".