9400313231 has 4 divisors (see below), whose sum is σ = 9491578512. Its totient is φ = 9309047952.

The previous prime is 9400313227. The next prime is 9400313243. The reversal of 9400313231 is 1323130049.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9400313231 - 2² = 9400313227 is a prime.

It is a super-2 number, since 2×9400313231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9400313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400313201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45632486 + ... + 45632691.

It is an arithmetic number, because the mean of its divisors is an integer number (2372894628).

Almost surely, 2^9400313231 is an apocalyptic number.

9400313231 is a deficient number, since it is larger than the sum of its proper divisors (91265281).

9400313231 is a wasteful number, since it uses less digits than its factorization.

9400313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91265280.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 9400313231 is about 96955.2125004118. The cubic root of 9400313231 is about 2110.4777360634.

The spelling of 9400313231 in words is "nine billion, four hundred million, three hundred thirteen thousand, two hundred thirty-one".