102001001899 has 2 divisors, whose sum is σ = 102001001900. Its totient is φ = 102001001898.

The previous prime is 102001001857. The next prime is 102001001903. The reversal of 102001001899 is 998100100201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102001001899 - 2¹⁵ = 102000969131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102001001899.

It is not a weakly prime, because it can be changed into another prime (102001001819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000500949 + 51000500950.

It is an arithmetic number, because the mean of its divisors is an integer number (51000500950).

Almost surely, 2^102001001899 is an apocalyptic number.

102001001899 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001001899 is an equidigital number, since it uses as much as digits as its factorization.

102001001899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 102001001899 in words is "one hundred two billion, one million, one thousand, eight hundred ninety-nine".