10112111988 has 96 divisors (see below), whose sum is σ = 26549268480. Its totient is φ = 2968640640.

The previous prime is 10112111981. The next prime is 10112112013. The reversal of 10112111988 is 88911121101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112111981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162945 + ... + 1171607.

It is an arithmetic number, because the mean of its divisors is an integer number (276554880).

Almost surely, 2^10112111988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10112111988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13274634240).

10112111988 is an abundant number, since it is smaller than the sum of its proper divisors (16437156492).

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

10112111988 is a wasteful number, since it uses less digits than its factorization.

10112111988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8957 (or 8955 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 33.

The spelling of 10112111988 in words is "ten billion, one hundred twelve million, one hundred eleven thousand, nine hundred eighty-eight".