20311000112 has 40 divisors (see below), whose sum is σ = 43746783360. Its totient is φ = 9071907840.

The previous prime is 20311000079. The next prime is 20311000139. The reversal of 20311000112 is 21100011302.

It is a junction number, because it is equal to n+sod(n) for n = 20311000093 and 20311000102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568537 + ... + 1581432.

It is an arithmetic number, because the mean of its divisors is an integer number (1093669584).

Almost surely, 2^20311000112 is an apocalyptic number.

It is an amenable number.

20311000112 is an abundant number, since it is smaller than the sum of its proper divisors (23435783248).

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

20311000112 is a wasteful number, since it uses less digits than its factorization.

20311000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150021 (or 3150015 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20311000112 its reverse (21100011302), we get a palindrome (41411011414).

The spelling of 20311000112 in words is "twenty billion, three hundred eleven million, one hundred twelve", and thus it is an aban number.