320140115231 has 8 divisors (see below), whose sum is σ = 337750302720. Its totient is φ = 302605998552.

The previous prime is 320140115227. The next prime is 320140115233. The reversal of 320140115231 is 132511041023.

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 320140115231 - 2² = 320140115227 is a prime.

It is a super-2 number, since 2×320140115231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320140115197 and 320140115206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320140115233) 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, 19009055 + ... + 19025888.

It is an arithmetic number, because the mean of its divisors is an integer number (42218787840).

Almost surely, 2^320140115231 is an apocalyptic number.

320140115231 is a deficient number, since it is larger than the sum of its proper divisors (17610187489).

320140115231 is a wasteful number, since it uses less digits than its factorization.

320140115231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38035405.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 320140115231 its reverse (132511041023), we get a palindrome (452651156254).

The spelling of 320140115231 in words is "three hundred twenty billion, one hundred forty million, one hundred fifteen thousand, two hundred thirty-one".