11331330312231 has 16 divisors (see below), whose sum is σ = 16788110592000. Its totient is φ = 7553790649944.

The previous prime is 11331330312229. The next prime is 11331330312371. The reversal of 11331330312231 is 13221303313311.

11331330312231 is a `hidden beast` number, since 1 + 1 + 3 + 313 + 3 + 0 + 312 + 2 + 31 = 666.

It is not a de Polignac number, because 11331330312231 - 2¹ = 11331330312229 is a prime.

It is a super-2 number, since 2×11331330312231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11331330312195 and 11331330312204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331330312931) 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, 11448201 + ... + 12398546.

It is an arithmetic number, because the mean of its divisors is an integer number (1049256912000).

Almost surely, 2^{11331330312231} is an apocalyptic number.

11331330312231 is a deficient number, since it is larger than the sum of its proper divisors (5456780279769).

11331330312231 is a wasteful number, since it uses less digits than its factorization.

11331330312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23864355 (or 23864349 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 11331330312231 its reverse (13221303313311), we get a palindrome (24552633625542).

The spelling of 11331330312231 in words is "eleven trillion, three hundred thirty-one billion, three hundred thirty million, three hundred twelve thousand, two hundred thirty-one".