331020112331 has 4 divisors (see below), whose sum is σ = 345412291152. Its totient is φ = 316627933512.

The previous prime is 331020112327. The next prime is 331020112333. The reversal of 331020112331 is 133211020133.

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 331020112331 - 2² = 331020112327 is a prime.

It is a super-2 number, since 2×331020112331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331020112333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7196089376 + ... + 7196089421.

It is an arithmetic number, because the mean of its divisors is an integer number (86353072788).

Almost surely, 2^331020112331 is an apocalyptic number.

331020112331 is a deficient number, since it is larger than the sum of its proper divisors (14392178821).

331020112331 is a wasteful number, since it uses less digits than its factorization.

331020112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14392178820.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 331020112331 its reverse (133211020133), we get a palindrome (464231132464).

The spelling of 331020112331 in words is "three hundred thirty-one billion, twenty million, one hundred twelve thousand, three hundred thirty-one".