10111201988 has 24 divisors (see below), whose sum is σ = 18166135680. Its totient is φ = 4922334560.

The previous prime is 10111201963. The next prime is 10111202009. The reversal of 10111201988 is 88910211101.

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, 154268 + ... + 209811.

It is an arithmetic number, because the mean of its divisors is an integer number (756922320).

Almost surely, 2^10111201988 is an apocalyptic number.

It is an amenable number.

10111201988 is a deficient number, since it is larger than the sum of its proper divisors (8054933692).

10111201988 is a wasteful number, since it uses less digits than its factorization.

10111201988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364267 (or 364265 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 10111201988 in words is "ten billion, one hundred eleven million, two hundred one thousand, nine hundred eighty-eight".