10111201986 has 32 divisors (see below), whose sum is σ = 20906574336. Its totient is φ = 3256704000.

The previous prime is 10111201963. The next prime is 10111202009. The reversal of 10111201986 is 68910211101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10111201963) and next prime (10111202009).

It is a Curzon 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, 81826 + ... + 164066.

It is an arithmetic number, because the mean of its divisors is an integer number (653330448).

Almost surely, 2^10111201986 is an apocalyptic number.

10111201986 is an abundant number, since it is smaller than the sum of its proper divisors (10795372350).

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

10111201986 is a wasteful number, since it uses less digits than its factorization.

10111201986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82938.

The product of its (nonzero) digits is 864, while the sum is 30.

The spelling of 10111201986 in words is "ten billion, one hundred eleven million, two hundred one thousand, nine hundred eighty-six".