20112110988 has 48 divisors (see below), whose sum is σ = 47437716480. Its totient is φ = 6631632000.

The previous prime is 20112110969. The next prime is 20112110989. The reversal of 20112110988 is 88901121102.

It is a super-2 number, since 2×20112110988² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20112110989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409848 + ... + 456288.

It is an arithmetic number, because the mean of its divisors is an integer number (988285760).

Almost surely, 2^20112110988 is an apocalyptic number.

It is an amenable number.

20112110988 is an abundant number, since it is smaller than the sum of its proper divisors (27325605492).

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

20112110988 is a wasteful number, since it uses less digits than its factorization.

20112110988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46838 (or 46836 counting only the distinct ones).

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

The spelling of 20112110988 in words is "twenty billion, one hundred twelve million, one hundred ten thousand, nine hundred eighty-eight".