331322013031 has 4 divisors (see below), whose sum is σ = 331708620672. Its totient is φ = 330935405392.

The previous prime is 331322013023. The next prime is 331322013073. The reversal of 331322013031 is 130310223133.

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 331322013031 - 2³ = 331322013023 is a prime.

It is a super-2 number, since 2×331322013031² (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 = 331322012993 and 331322013011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331322013131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193302535 + ... + 193304248.

It is an arithmetic number, because the mean of its divisors is an integer number (82927155168).

Almost surely, 2^331322013031 is an apocalyptic number.

331322013031 is a deficient number, since it is larger than the sum of its proper divisors (386607641).

331322013031 is an equidigital number, since it uses as much as digits as its factorization.

331322013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386607640.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 331322013031 its reverse (130310223133), we get a palindrome (461632236164).

The spelling of 331322013031 in words is "three hundred thirty-one billion, three hundred twenty-two million, thirteen thousand, thirty-one".