102113332021 has 2 divisors, whose sum is σ = 102113332022. Its totient is φ = 102113332020.

The previous prime is 102113332007. The next prime is 102113332033. The reversal of 102113332021 is 120233311201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76776651396 + 25336680625 = 277086^2 + 159175^2 .

It is an emirp because it is prime and its reverse (120233311201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102113332021 - 2²⁹ = 101576461109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102113332021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102113332621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056666010 + 51056666011.

It is an arithmetic number, because the mean of its divisors is an integer number (51056666011).

Almost surely, 2^102113332021 is an apocalyptic number.

It is an amenable number.

102113332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102113332021 is an equidigital number, since it uses as much as digits as its factorization.

102113332021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102113332021 its reverse (120233311201), we get a palindrome (222346643222).

The spelling of 102113332021 in words is "one hundred two billion, one hundred thirteen million, three hundred thirty-two thousand, twenty-one".