130949402021 has 2 divisors, whose sum is σ = 130949402022. Its totient is φ = 130949402020.

The previous prime is 130949401981. The next prime is 130949402027. The reversal of 130949402021 is 120204949031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77871693025 + 53077708996 = 279055^2 + 230386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130949402021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130949402027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65474701010 + 65474701011.

It is an arithmetic number, because the mean of its divisors is an integer number (65474701011).

Almost surely, 2^130949402021 is an apocalyptic number.

It is an amenable number.

130949402021 is a deficient number, since it is larger than the sum of its proper divisors (1).

130949402021 is an equidigital number, since it uses as much as digits as its factorization.

130949402021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 130949402021 in words is "one hundred thirty billion, nine hundred forty-nine million, four hundred two thousand, twenty-one".