102000011131021 has 2 divisors, whose sum is σ = 102000011131022. Its totient is φ = 102000011131020.

The previous prime is 102000011131003. The next prime is 102000011131027. The reversal of 102000011131021 is 120131110000201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72062272102500 + 29937739028521 = 8488950^2 + 5471539^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000011131021 - 2²⁵ = 101999977576589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102000011130992 and 102000011131010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102000011131027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000005565510 + 51000005565511.

It is an arithmetic number, because the mean of its divisors is an integer number (51000005565511).

Almost surely, 2^{102000011131021} is an apocalyptic number.

It is an amenable number.

102000011131021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000011131021 is an equidigital number, since it uses as much as digits as its factorization.

102000011131021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 102000011131021 its reverse (120131110000201), we get a palindrome (222131121131222).

The spelling of 102000011131021 in words is "one hundred two trillion, eleven million, one hundred thirty-one thousand, twenty-one".