129332720653 has 2 divisors, whose sum is σ = 129332720654. Its totient is φ = 129332720652.

The previous prime is 129332720617. The next prime is 129332720659. The reversal of 129332720653 is 356027233921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90097826569 + 39234894084 = 300163^2 + 198078^2 .

It is an emirp because it is prime and its reverse (356027233921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129332720653 - 2²⁵ = 129299166221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129332720659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64666360326 + 64666360327.

It is an arithmetic number, because the mean of its divisors is an integer number (64666360327).

Almost surely, 2^129332720653 is an apocalyptic number.

It is an amenable number.

129332720653 is a deficient number, since it is larger than the sum of its proper divisors (1).

129332720653 is an equidigital number, since it uses as much as digits as its factorization.

129332720653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 129332720653 in words is "one hundred twenty-nine billion, three hundred thirty-two million, seven hundred twenty thousand, six hundred fifty-three".