320426131 has 8 divisors (see below), whose sum is σ = 323438544. Its totient is φ = 317422560.

The previous prime is 320426123. The next prime is 320426143. The reversal of 320426131 is 131624023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320426131 - 2³ = 320426123 is a prime.

It is a super-2 number, since 2×320426131² = 205345810855258322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320406131) 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, 86881 + ... + 90493.

It is an arithmetic number, because the mean of its divisors is an integer number (40429818).

Almost surely, 2^320426131 is an apocalyptic number.

320426131 is a deficient number, since it is larger than the sum of its proper divisors (3012413).

320426131 is a wasteful number, since it uses less digits than its factorization.

320426131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 320426131 is about 17900.4505809211. The cubic root of 320426131 is about 684.2938580668.

The spelling of 320426131 in words is "three hundred twenty million, four hundred twenty-six thousand, one hundred thirty-one".