12240310231 has 2 divisors, whose sum is σ = 12240310232. Its totient is φ = 12240310230.

The previous prime is 12240310183. The next prime is 12240310237. The reversal of 12240310231 is 13201304221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12240310231 is a prime.

It is a super-2 number, since 2×12240310231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12240310199 and 12240310208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240310237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120155115 + 6120155116.

It is an arithmetic number, because the mean of its divisors is an integer number (6120155116).

Almost surely, 2^12240310231 is an apocalyptic number.

12240310231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240310231 is an equidigital number, since it uses as much as digits as its factorization.

12240310231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12240310231 its reverse (13201304221), we get a palindrome (25441614452).

The spelling of 12240310231 in words is "twelve billion, two hundred forty million, three hundred ten thousand, two hundred thirty-one".