130123241210021 has 2 divisors, whose sum is σ = 130123241210022. Its totient is φ = 130123241210020.

The previous prime is 130123241209987. The next prime is 130123241210047. The reversal of 130123241210021 is 120012142321031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72478916037025 + 57644325172996 = 8513455^2 + 7592386^2 .

It is an emirp because it is prime and its reverse (120012142321031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130123241210021 - 2⁶ = 130123241209957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130123241210621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061620605010 + 65061620605011.

It is an arithmetic number, because the mean of its divisors is an integer number (65061620605011).

Almost surely, 2^{130123241210021} is an apocalyptic number.

It is an amenable number.

130123241210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

130123241210021 is an equidigital number, since it uses as much as digits as its factorization.

130123241210021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 130123241210021 its reverse (120012142321031), we get a palindrome (250135383531052).

The spelling of 130123241210021 in words is "one hundred thirty trillion, one hundred twenty-three billion, two hundred forty-one million, two hundred ten thousand, twenty-one".