20113031013404 has 48 divisors (see below), whose sum is σ = 40404713932800. Its totient is φ = 8581590603840.

The previous prime is 20113031013367. The next prime is 20113031013433. The reversal of 20113031013404 is 40431013031102.

It is a super-2 number, since 2×20113031013404² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20113031013404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321525122 + ... + 321587670.

It is an arithmetic number, because the mean of its divisors is an integer number (841764873600).

Almost surely, 2^{20113031013404} is an apocalyptic number.

It is an amenable number.

20113031013404 is an abundant number, since it is smaller than the sum of its proper divisors (20291682919396).

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

20113031013404 is a wasteful number, since it uses less digits than its factorization.

20113031013404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113378 (or 113376 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20113031013404 its reverse (40431013031102), we get a palindrome (60544044044506).

The spelling of 20113031013404 in words is "twenty trillion, one hundred thirteen billion, thirty-one million, thirteen thousand, four hundred four".