20113031010012 has 48 divisors (see below), whose sum is σ = 47219657721600. Its totient is φ = 6663098268288.

The previous prime is 20113031009879. The next prime is 20113031010019. The reversal of 20113031010012 is 21001013031102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20113031009973 and 20113031010000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113031010019) 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, 2660673 + ... + 6877880.

It is an arithmetic number, because the mean of its divisors is an integer number (983742869200).

Almost surely, 2^{20113031010012} is an apocalyptic number.

It is an amenable number.

20113031010012 is an abundant number, since it is smaller than the sum of its proper divisors (27106626711588).

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

20113031010012 is a wasteful number, since it uses less digits than its factorization.

20113031010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539642 (or 9539640 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20113031010012 its reverse (21001013031102), we get a palindrome (41114044041114).

The spelling of 20113031010012 in words is "twenty trillion, one hundred thirteen billion, thirty-one million, ten thousand, twelve".