129302370509 has 16 divisors (see below), whose sum is σ = 141949848768. Its totient is φ = 117056472192.

The previous prime is 129302370503. The next prime is 129302370521. The reversal of 129302370509 is 905073203921.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129302370509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129302370503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129272 + ... + 524705.

It is an arithmetic number, because the mean of its divisors is an integer number (8871865548).

Almost surely, 2^129302370509 is an apocalyptic number.

It is an amenable number.

129302370509 is a deficient number, since it is larger than the sum of its proper divisors (12647478259).

129302370509 is a wasteful number, since it uses less digits than its factorization.

129302370509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654284.

The product of its (nonzero) digits is 102060, while the sum is 41.

The spelling of 129302370509 in words is "one hundred twenty-nine billion, three hundred two million, three hundred seventy thousand, five hundred nine".