102140245399 has 2 divisors, whose sum is σ = 102140245400. Its totient is φ = 102140245398.

The previous prime is 102140245397. The next prime is 102140245411. The reversal of 102140245399 is 993542041201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102140245399 - 2¹ = 102140245397 is a prime.

Together with 102140245397, 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 (102140245397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51070122699 + 51070122700.

It is an arithmetic number, because the mean of its divisors is an integer number (51070122700).

Almost surely, 2^102140245399 is an apocalyptic number.

102140245399 is a deficient number, since it is larger than the sum of its proper divisors (1).

102140245399 is an equidigital number, since it uses as much as digits as its factorization.

102140245399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 102140245399 in words is "one hundred two billion, one hundred forty million, two hundred forty-five thousand, three hundred ninety-nine".