102102100209899 has 2 divisors, whose sum is σ = 102102100209900. Its totient is φ = 102102100209898.

The previous prime is 102102100209847. The next prime is 102102100210021. The reversal of 102102100209899 is 998902001201201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102102100209899 - 2²⁴ = 102102083432683 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102100209839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051050104949 + 51051050104950.

It is an arithmetic number, because the mean of its divisors is an integer number (51051050104950).

Almost surely, 2^{102102100209899} is an apocalyptic number.

102102100209899 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102100209899 is an equidigital number, since it uses as much as digits as its factorization.

102102100209899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 102102100209899 in words is "one hundred two trillion, one hundred two billion, one hundred million, two hundred nine thousand, eight hundred ninety-nine".