130000631309 has 2 divisors, whose sum is σ = 130000631310. Its totient is φ = 130000631308.

The previous prime is 130000631251. The next prime is 130000631311. The reversal of 130000631309 is 903136000031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82877773225 + 47122858084 = 287885^2 + 217078^2 .

It is a cyclic number.

It is not a de Polignac number, because 130000631309 - 2³⁶ = 61281154573 is a prime.

Together with 130000631311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130000631389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65000315654 + 65000315655.

It is an arithmetic number, because the mean of its divisors is an integer number (65000315655).

Almost surely, 2^130000631309 is an apocalyptic number.

It is an amenable number.

130000631309 is a deficient number, since it is larger than the sum of its proper divisors (1).

130000631309 is an equidigital number, since it uses as much as digits as its factorization.

130000631309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 130000631309 in words is "one hundred thirty billion, six hundred thirty-one thousand, three hundred nine".