20113000012 has 96 divisors (see below), whose sum is σ = 44602880000. Its totient is φ = 7902437760.

The previous prime is 20113000001. The next prime is 20113000013. The reversal of 20113000012 is 21000031102.

It is not an unprimeable number, because it can be changed into a prime (20113000013) 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, 795664 + ... + 820552.

Almost surely, 2^20113000012 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 20113000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22301440000).

20113000012 is an abundant number, since it is smaller than the sum of its proper divisors (24489879988).

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

20113000012 is a wasteful number, since it uses less digits than its factorization.

20113000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24964 (or 24948 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20113000012 its reverse (21000031102), we get a palindrome (41113031114).

The spelling of 20113000012 in words is "twenty billion, one hundred thirteen million, twelve", and thus it is an aban number.