12231311031 has 6 divisors (see below), whose sum is σ = 17667449280. Its totient is φ = 8154207348.

The previous prime is 12231311021. The next prime is 12231311033. The reversal of 12231311031 is 13011313221.

It is not a de Polignac number, because 12231311031 - 2¹¹ = 12231308983 is a prime.

It is a super-2 number, since 2×12231311031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12231310995 and 12231311013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231311033) 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, 679517271 + ... + 679517288.

It is an arithmetic number, because the mean of its divisors is an integer number (2944574880).

Almost surely, 2^12231311031 is an apocalyptic number.

12231311031 is a deficient number, since it is larger than the sum of its proper divisors (5436138249).

12231311031 is a wasteful number, since it uses less digits than its factorization.

12231311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359034565 (or 1359034562 counting only the distinct ones).

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

Adding to 12231311031 its reverse (13011313221), we get a palindrome (25242624252).

The spelling of 12231311031 in words is "twelve billion, two hundred thirty-one million, three hundred eleven thousand, thirty-one".