331034131231 has 4 divisors (see below), whose sum is σ = 333561109464. Its totient is φ = 328507153000.

The previous prime is 331034131229. The next prime is 331034131273. The reversal of 331034131231 is 132131430133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132131430133 = 1753 ⋅75374461.

It is a cyclic number.

It is not a de Polignac number, because 331034131231 - 2¹ = 331034131229 is a prime.

It is a super-2 number, since 2×331034131231² (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 = 331034131196 and 331034131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331034134231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263488920 + ... + 1263489181.

It is an arithmetic number, because the mean of its divisors is an integer number (83390277366).

Almost surely, 2^331034131231 is an apocalyptic number.

331034131231 is a deficient number, since it is larger than the sum of its proper divisors (2526978233).

331034131231 is a wasteful number, since it uses less digits than its factorization.

331034131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526978232.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 331034131231 its reverse (132131430133), we get a palindrome (463165561364).

The spelling of 331034131231 in words is "three hundred thirty-one billion, thirty-four million, one hundred thirty-one thousand, two hundred thirty-one".