130021434043309 has 2 divisors, whose sum is σ = 130021434043310. Its totient is φ = 130021434043308.

The previous prime is 130021434043307. The next prime is 130021434043327. The reversal of 130021434043309 is 903340434120031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127309473922500 + 2711960120809 = 11283150^2 + 1646803^2 .

It is a cyclic number.

It is not a de Polignac number, because 130021434043309 - 2¹ = 130021434043307 is a prime.

Together with 130021434043307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130021434043307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65010717021654 + 65010717021655.

It is an arithmetic number, because the mean of its divisors is an integer number (65010717021655).

Almost surely, 2^{130021434043309} is an apocalyptic number.

It is an amenable number.

130021434043309 is a deficient number, since it is larger than the sum of its proper divisors (1).

130021434043309 is an equidigital number, since it uses as much as digits as its factorization.

130021434043309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 130021434043309 in words is "one hundred thirty trillion, twenty-one billion, four hundred thirty-four million, forty-three thousand, three hundred nine".