231111310113331 has 6 divisors (see below), whose sum is σ = 245505786176060. Its totient is φ = 217516527165216.

The previous prime is 231111310113329. The next prime is 231111310113377. The reversal of 231111310113331 is 133311013111132.

It is not a de Polignac number, because 231111310113331 - 2¹ = 231111310113329 is a prime.

It is a super-3 number, since 3×231111310113331³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231111310113296 and 231111310113305.

It is not an unprimeable number, because it can be changed into a prime (231111310113631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399846557001 + ... + 399846557578.

Almost surely, 2^{231111310113331} is an apocalyptic number.

231111310113331 is a deficient number, since it is larger than the sum of its proper divisors (14394476062729).

231111310113331 is an equidigital number, since it uses as much as digits as its factorization.

231111310113331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799693114613 (or 799693114596 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

Adding to 231111310113331 its reverse (133311013111132), we get a palindrome (364422323224463).

The spelling of 231111310113331 in words is "two hundred thirty-one trillion, one hundred eleven billion, three hundred ten million, one hundred thirteen thousand, three hundred thirty-one".