102130999 has 2 divisors, whose sum is σ = 102131000. Its totient is φ = 102130998.

The previous prime is 102130997. The next prime is 102131033. The reversal of 102130999 is 999031201.

It is an a-pointer prime, because the next prime (102131033) can be obtained adding 102130999 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102130999 - 2¹ = 102130997 is a prime.

Together with 102130997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102130993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065499 + 51065500.

It is an arithmetic number, because the mean of its divisors is an integer number (51065500).

Almost surely, 2^102130999 is an apocalyptic number.

102130999 is a deficient number, since it is larger than the sum of its proper divisors (1).

102130999 is an equidigital number, since it uses as much as digits as its factorization.

102130999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 102130999 is about 10105.9882742857. The cubic root of 102130999 is about 467.4328102701.

The spelling of 102130999 in words is "one hundred two million, one hundred thirty thousand, nine hundred ninety-nine".