320460031 has 4 divisors (see below), whose sum is σ = 320533200. Its totient is φ = 320386864.

The previous prime is 320460029. The next prime is 320460067. The reversal of 320460031 is 130064023.

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 320460031 - 2¹ = 320460029 is a prime.

It is a super-2 number, since 2×320460031² = 205389262937041922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320459990 and 320460008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320460011) 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, 29566 + ... + 38923.

It is an arithmetic number, because the mean of its divisors is an integer number (80133300).

Almost surely, 2^320460031 is an apocalyptic number.

320460031 is a deficient number, since it is larger than the sum of its proper divisors (73169).

320460031 is an equidigital number, since it uses as much as digits as its factorization.

320460031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73168.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320460031 is about 17901.3974594164. The cubic root of 320460031 is about 684.3179892071.

The spelling of 320460031 in words is "three hundred twenty million, four hundred sixty thousand, thirty-one".