102100121983 has 4 divisors (see below), whose sum is σ = 102136732920. Its totient is φ = 102063511048.

The previous prime is 102100121947. The next prime is 102100122011. The reversal of 102100121983 is 389121001201.

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 102100121983 - 2²⁹ = 101563251071 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 (102100181983) 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, 18301285 + ... + 18306862.

It is an arithmetic number, because the mean of its divisors is an integer number (25534183230).

Almost surely, 2^102100121983 is an apocalyptic number.

102100121983 is a deficient number, since it is larger than the sum of its proper divisors (36610937).

102100121983 is an equidigital number, since it uses as much as digits as its factorization.

102100121983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36610936.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 102100121983 in words is "one hundred two billion, one hundred million, one hundred twenty-one thousand, nine hundred eighty-three".