320625426010531 has 4 divisors (see below), whose sum is σ = 321311990092392. Its totient is φ = 319938861928672.

The previous prime is 320625426010511. The next prime is 320625426010567. The reversal of 320625426010531 is 135010624526023.

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 320625426010531 - 2⁵ = 320625426010499 is a prime.

It is a super-2 number, since 2×320625426010531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320625426010511) 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, 343282040230 + ... + 343282041163.

It is an arithmetic number, because the mean of its divisors is an integer number (80327997523098).

Almost surely, 2^{320625426010531} is an apocalyptic number.

320625426010531 is a deficient number, since it is larger than the sum of its proper divisors (686564081861).

320625426010531 is an equidigital number, since it uses as much as digits as its factorization.

320625426010531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686564081860.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 320625426010531 in words is "three hundred twenty trillion, six hundred twenty-five billion, four hundred twenty-six million, ten thousand, five hundred thirty-one".