331011233231 has 16 divisors (see below), whose sum is σ = 380675527680. Its totient is φ = 281942182080.

The previous prime is 331011233219. The next prime is 331011233263. The reversal of 331011233231 is 132332110133.

It is a cyclic number.

It is not a de Polignac number, because 331011233231 - 2¹⁴ = 331011216847 is a prime.

It is a super-2 number, since 2×331011233231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331011233197 and 331011233206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331011233431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4120691 + ... + 4200251.

It is an arithmetic number, because the mean of its divisors is an integer number (23792220480).

Almost surely, 2^331011233231 is an apocalyptic number.

331011233231 is a deficient number, since it is larger than the sum of its proper divisors (49664294449).

331011233231 is a wasteful number, since it uses less digits than its factorization.

331011233231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83294.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 331011233231 its reverse (132332110133), we get a palindrome (463343343364).

The spelling of 331011233231 in words is "three hundred thirty-one billion, eleven million, two hundred thirty-three thousand, two hundred thirty-one".