102996188021 has 2 divisors, whose sum is σ = 102996188022. Its totient is φ = 102996188020.

The previous prime is 102996188017. The next prime is 102996188093. The reversal of 102996188021 is 120881699201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102624122500 + 372065521 = 320350^2 + 19289^2 .

It is a cyclic number.

It is not a de Polignac number, because 102996188021 - 2² = 102996188017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102996188521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51498094010 + 51498094011.

It is an arithmetic number, because the mean of its divisors is an integer number (51498094011).

Almost surely, 2^102996188021 is an apocalyptic number.

It is an amenable number.

102996188021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102996188021 is an equidigital number, since it uses as much as digits as its factorization.

102996188021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 47.

The spelling of 102996188021 in words is "one hundred two billion, nine hundred ninety-six million, one hundred eighty-eight thousand, twenty-one".