12302313129 has 14 divisors (see below), whose sum is σ = 18445032986. Its totient is φ = 8201541600.

The previous prime is 12302313083. The next prime is 12302313151. The reversal of 12302313129 is 92131320321.

12302313129 is a `hidden beast` number, since 12 + 302 + 31 + 312 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11658168729 + 644144400 = 107973^2 + 25380^2 .

It is not a de Polignac number, because 12302313129 - 2⁸ = 12302312873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12302313929) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 8437072 + ... + 8438529.

Almost surely, 2^12302313129 is an apocalyptic number.

It is an amenable number.

12302313129 is a deficient number, since it is larger than the sum of its proper divisors (6142719857).

12302313129 is an frugal number, since it uses more digits than its factorization.

12302313129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16875619 (or 16875604 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 12302313129 in words is "twelve billion, three hundred two million, three hundred thirteen thousand, one hundred twenty-nine".