12311120331 has 12 divisors (see below), whose sum is σ = 18033191280. Its totient is φ = 8091815760.

The previous prime is 12311120291. The next prime is 12311120377. The reversal of 12311120331 is 13302111321.

12311120331 is a `hidden beast` number, since 1 + 2 + 311 + 1 + 20 + 331 = 666.

It is not a de Polignac number, because 12311120331 - 2⁶ = 12311120267 is a prime.

It is a super-2 number, since 2×12311120331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12311120131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9632476 + ... + 9633753.

It is an arithmetic number, because the mean of its divisors is an integer number (1502765940).

Almost surely, 2^12311120331 is an apocalyptic number.

12311120331 is a deficient number, since it is larger than the sum of its proper divisors (5722070949).

12311120331 is a wasteful number, since it uses less digits than its factorization.

12311120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19266306 (or 19266303 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12311120331 its reverse (13302111321), we get a palindrome (25613231652).

The spelling of 12311120331 in words is "twelve billion, three hundred eleven million, one hundred twenty thousand, three hundred thirty-one".