12031570129 has 2 divisors, whose sum is σ = 12031570130. Its totient is φ = 12031570128.

The previous prime is 12031570099. The next prime is 12031570147. The reversal of 12031570129 is 92107513021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10551398400 + 1480171729 = 102720^2 + 38473^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031570129 - 2²⁵ = 11998015697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12031570129.

It is not a weakly prime, because it can be changed into another prime (12031570169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015785064 + 6015785065.

It is an arithmetic number, because the mean of its divisors is an integer number (6015785065).

Almost surely, 2^12031570129 is an apocalyptic number.

It is an amenable number.

12031570129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031570129 is an equidigital number, since it uses as much as digits as its factorization.

12031570129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The spelling of 12031570129 in words is "twelve billion, thirty-one million, five hundred seventy thousand, one hundred twenty-nine".