102100020021983 has 8 divisors (see below), whose sum is σ = 102373508071296. Its totient is φ = 101826811759000.

The previous prime is 102100020021949. The next prime is 102100020022009. The reversal of 102100020021983 is 389120020001201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102100020021983 - 2⁶ = 102100020021919 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 (102100020321983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69215753 + ... + 70675458.

It is an arithmetic number, because the mean of its divisors is an integer number (12796688508912).

Almost surely, 2^{102100020021983} is an apocalyptic number.

102100020021983 is a deficient number, since it is larger than the sum of its proper divisors (273488049313).

102100020021983 is a wasteful number, since it uses less digits than its factorization.

102100020021983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139893165.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 102100020021983 in words is "one hundred two trillion, one hundred billion, twenty million, twenty-one thousand, nine hundred eighty-three".