11311012331 has 8 divisors (see below), whose sum is σ = 11663280720. Its totient is φ = 10963886752.

The previous prime is 11311012319. The next prime is 11311012333. The reversal of 11311012331 is 13321011311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11311012331 - 2¹⁰ = 11311011307 is a prime.

It is a super-2 number, since 2×11311012331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311012333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281236 + ... + 1290033.

It is an arithmetic number, because the mean of its divisors is an integer number (1457910090).

Almost surely, 2^11311012331 is an apocalyptic number.

11311012331 is a deficient number, since it is larger than the sum of its proper divisors (352268389).

11311012331 is an equidigital number, since it uses as much as digits as its factorization.

11311012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571405.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11311012331 its reverse (13321011311), we get a palindrome (24632023642).

The spelling of 11311012331 in words is "eleven billion, three hundred eleven million, twelve thousand, three hundred thirty-one".