12302311231 has 16 divisors (see below), whose sum is σ = 14725670400. Its totient is φ = 10048835808.

The previous prime is 12302311201. The next prime is 12302311249. The reversal of 12302311231 is 13211320321.

It is a cyclic number.

It is not a de Polignac number, because 12302311231 - 2⁵ = 12302311199 is a prime.

It is a super-2 number, since 2×12302311231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12302311199 and 12302311208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302311201) 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, 98721 + ... + 185338.

It is an arithmetic number, because the mean of its divisors is an integer number (920354400).

Almost surely, 2^12302311231 is an apocalyptic number.

12302311231 is a deficient number, since it is larger than the sum of its proper divisors (2423359169).

12302311231 is a wasteful number, since it uses less digits than its factorization.

12302311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284358.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12302311231 its reverse (13211320321), we get a palindrome (25513631552).

The spelling of 12302311231 in words is "twelve billion, three hundred two million, three hundred eleven thousand, two hundred thirty-one".