102012011988 has 24 divisors (see below), whose sum is σ = 238803372192. Its totient is φ = 33893240544.

The previous prime is 102012011939. The next prime is 102012012017. The reversal of 102012011988 is 889110210201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13841595 + ... + 13848962.

It is an arithmetic number, because the mean of its divisors is an integer number (9950140508).

Almost surely, 2^102012011988 is an apocalyptic number.

It is an amenable number.

102012011988 is an abundant number, since it is smaller than the sum of its proper divisors (136791360204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102012011988 is a wasteful number, since it uses less digits than its factorization.

102012011988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27690871 (or 27690869 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 33.

The spelling of 102012011988 in words is "one hundred two billion, twelve million, eleven thousand, nine hundred eighty-eight".