2130113191021 has 2 divisors, whose sum is σ = 2130113191022. Its totient is φ = 2130113191020.

The previous prime is 2130113190991. The next prime is 2130113191061. The reversal of 2130113191021 is 1201913110312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1417971297796 + 712141893225 = 1190786^2 + 843885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130113191021 - 2³⁹ = 1580357377133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130113191061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065056595510 + 1065056595511.

It is an arithmetic number, because the mean of its divisors is an integer number (1065056595511).

Almost surely, 2^{2130113191021} is an apocalyptic number.

It is an amenable number.

2130113191021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130113191021 is an equidigital number, since it uses as much as digits as its factorization.

2130113191021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 2130113191021 in words is "two trillion, one hundred thirty billion, one hundred thirteen million, one hundred ninety-one thousand, twenty-one".