102101203999 has 2 divisors, whose sum is σ = 102101204000. Its totient is φ = 102101203998.

The previous prime is 102101203991. The next prime is 102101204041. The reversal of 102101203999 is 999302101201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102101203999 - 2³ = 102101203991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102101203991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050601999 + 51050602000.

It is an arithmetic number, because the mean of its divisors is an integer number (51050602000).

Almost surely, 2^102101203999 is an apocalyptic number.

102101203999 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101203999 is an equidigital number, since it uses as much as digits as its factorization.

102101203999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 102101203999 in words is "one hundred two billion, one hundred one million, two hundred three thousand, nine hundred ninety-nine".