101310212140021 has 2 divisors, whose sum is σ = 101310212140022. Its totient is φ = 101310212140020.

The previous prime is 101310212140001. The next prime is 101310212140063. The reversal of 101310212140021 is 120041212013101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62108663619025 + 39201548520996 = 7880905^2 + 6261114^2 .

It is a cyclic number.

It is not a de Polignac number, because 101310212140021 - 2²³ = 101310203751413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101310212140001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50655106070010 + 50655106070011.

It is an arithmetic number, because the mean of its divisors is an integer number (50655106070011).

Almost surely, 2^{101310212140021} is an apocalyptic number.

It is an amenable number.

101310212140021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101310212140021 is an equidigital number, since it uses as much as digits as its factorization.

101310212140021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 101310212140021 its reverse (120041212013101), we get a palindrome (221351424153122).

The spelling of 101310212140021 in words is "one hundred one trillion, three hundred ten billion, two hundred twelve million, one hundred forty thousand, twenty-one".