20113111042004 has 12 divisors (see below), whose sum is σ = 35198257264800. Its totient is φ = 10056466109208.

The previous prime is 20113111041943. The next prime is 20113111042021. The reversal of 20113111042004 is 40024011131102.

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, 21845534 + ... + 22747605.

It is an arithmetic number, because the mean of its divisors is an integer number (2933188105400).

Almost surely, 2^{20113111042004} is an apocalyptic number.

It is an amenable number.

20113111042004 is a deficient number, since it is larger than the sum of its proper divisors (15085146222796).

20113111042004 is a wasteful number, since it uses less digits than its factorization.

20113111042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44705902 (or 44705900 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20113111042004 its reverse (40024011131102), we get a palindrome (60137122173106).

The spelling of 20113111042004 in words is "twenty trillion, one hundred thirteen billion, one hundred eleven million, forty-two thousand, four".