130502931721 has 8 divisors (see below), whose sum is σ = 134717964800. Its totient is φ = 126288227520.

The previous prime is 130502931719. The next prime is 130502931737. The reversal of 130502931721 is 127139205031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130502931721 - 2¹ = 130502931719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130502931701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917260 + ... + 1049938.

It is an arithmetic number, because the mean of its divisors is an integer number (16839745600).

Almost surely, 2^130502931721 is an apocalyptic number.

It is an amenable number.

130502931721 is a deficient number, since it is larger than the sum of its proper divisors (4215033079).

130502931721 is a wasteful number, since it uses less digits than its factorization.

130502931721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164439.

The product of its (nonzero) digits is 11340, while the sum is 34.

The spelling of 130502931721 in words is "one hundred thirty billion, five hundred two million, nine hundred thirty-one thousand, seven hundred twenty-one".