12407767231 has 4 divisors (see below), whose sum is σ = 12408071832. Its totient is φ = 12407462632.

The previous prime is 12407767223. The next prime is 12407767241. The reversal of 12407767231 is 13276770421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12407767231 - 2³ = 12407767223 is a prime.

It is a super-2 number, since 2×12407767231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12407767241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79645 + ... + 176518.

It is an arithmetic number, because the mean of its divisors is an integer number (3102017958).

Almost surely, 2^12407767231 is an apocalyptic number.

12407767231 is a deficient number, since it is larger than the sum of its proper divisors (304601).

12407767231 is an equidigital number, since it uses as much as digits as its factorization.

12407767231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304600.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 12407767231 in words is "twelve billion, four hundred seven million, seven hundred sixty-seven thousand, two hundred thirty-one".