11330331231 has 16 divisors (see below), whose sum is σ = 15768080640. Its totient is φ = 7223240640.

The previous prime is 11330331227. The next prime is 11330331247. The reversal of 11330331231 is 13213303311.

It is not a de Polignac number, because 11330331231 - 2² = 11330331227 is a prime.

It is a super-2 number, since 2×11330331231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11330331198 and 11330331207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11330335231) 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, 271651 + ... + 310571.

It is an arithmetic number, because the mean of its divisors is an integer number (985505040).

Almost surely, 2^11330331231 is an apocalyptic number.

11330331231 is a deficient number, since it is larger than the sum of its proper divisors (4437749409).

11330331231 is a wasteful number, since it uses less digits than its factorization.

11330331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43166.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 11330331231 its reverse (13213303311), we get a palindrome (24543634542).

The spelling of 11330331231 in words is "eleven billion, three hundred thirty million, three hundred thirty-one thousand, two hundred thirty-one".