130221545122391 has 2 divisors, whose sum is σ = 130221545122392. Its totient is φ = 130221545122390.

The previous prime is 130221545122381. The next prime is 130221545122477. The reversal of 130221545122391 is 193221545122031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130221545122391 - 2³⁰ = 130220471380567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130221545122381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65110772561195 + 65110772561196.

It is an arithmetic number, because the mean of its divisors is an integer number (65110772561196).

Almost surely, 2^{130221545122391} is an apocalyptic number.

130221545122391 is a deficient number, since it is larger than the sum of its proper divisors (1).

130221545122391 is an equidigital number, since it uses as much as digits as its factorization.

130221545122391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 130221545122391 in words is "one hundred thirty trillion, two hundred twenty-one billion, five hundred forty-five million, one hundred twenty-two thousand, three hundred ninety-one".