20131002112 has 36 divisors (see below), whose sum is σ = 43274402920. Its totient is φ = 9291230208.

The previous prime is 20131002097. The next prime is 20131002139. The reversal of 20131002112 is 21120013102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20131002092 and 20131002101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3021162 + ... + 3027817.

Almost surely, 2^20131002112 is an apocalyptic number.

It is an amenable number.

20131002112 is an abundant number, since it is smaller than the sum of its proper divisors (23143400808).

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

20131002112 is an equidigital number, since it uses as much as digits as its factorization.

20131002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049008 (or 6048994 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20131002112 its reverse (21120013102), we get a palindrome (41251015214).

The spelling of 20131002112 in words is "twenty billion, one hundred thirty-one million, two thousand, one hundred twelve".