189902021002102 has 32 divisors (see below), whose sum is σ = 288967266389088. Its totient is φ = 93581533495296.

The previous prime is 189902021002093. The next prime is 189902021002123. The reversal of 189902021002102 is 201200120209981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210159198 + ... + 1210316110.

It is an arithmetic number, because the mean of its divisors is an integer number (9030227074659).

Almost surely, 2^{189902021002102} is an apocalyptic number.

189902021002102 is a deficient number, since it is larger than the sum of its proper divisors (99065245386986).

189902021002102 is a wasteful number, since it uses less digits than its factorization.

189902021002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163024.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 189902021002102 in words is "one hundred eighty-nine trillion, nine hundred two billion, twenty-one million, two thousand, one hundred two".