102112120109999 has 4 divisors (see below), whose sum is σ = 102169261757064. Its totient is φ = 102054978462936.

The previous prime is 102112120109977. The next prime is 102112120110023. The reversal of 102112120109999 is 999901021211201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102112120109999 - 2²⁸ = 102111851674543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112120109959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28570820852 + ... + 28570824425.

It is an arithmetic number, because the mean of its divisors is an integer number (25542315439266).

Almost surely, 2^{102112120109999} is an apocalyptic number.

102112120109999 is a deficient number, since it is larger than the sum of its proper divisors (57141647065).

102112120109999 is an equidigital number, since it uses as much as digits as its factorization.

102112120109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57141647064.

The product of its (nonzero) digits is 52488, while the sum is 47.

The spelling of 102112120109999 in words is "one hundred two trillion, one hundred twelve billion, one hundred twenty million, one hundred nine thousand, nine hundred ninety-nine".