20113004031223 has 16 divisors (see below), whose sum is σ = 20411627192320. Its totient is φ = 19815519076704.

The previous prime is 20113004031149. The next prime is 20113004031233. The reversal of 20113004031223 is 32213040031102.

It is a cyclic number.

It is not a de Polignac number, because 20113004031223 - 2³³ = 20104414096631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113004031194 and 20113004031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113004031233) 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, 84356365 + ... + 84594457.

It is an arithmetic number, because the mean of its divisors is an integer number (1275726699520).

Almost surely, 2^{20113004031223} is an apocalyptic number.

20113004031223 is a deficient number, since it is larger than the sum of its proper divisors (298623161097).

20113004031223 is a wasteful number, since it uses less digits than its factorization.

20113004031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240478.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20113004031223 its reverse (32213040031102), we get a palindrome (52326044062325).

The spelling of 20113004031223 in words is "twenty trillion, one hundred thirteen billion, four million, thirty-one thousand, two hundred twenty-three".