20113031201223 has 16 divisors (see below), whose sum is σ = 26822334739680. Its totient is φ = 13406207840256.

The previous prime is 20113031201141. The next prime is 20113031201257. The reversal of 20113031201223 is 32210213031102.

It is not a de Polignac number, because 20113031201223 - 2²⁴ = 20113014424007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20113031201223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113031202223) 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, 455756023 + ... + 455800151.

It is an arithmetic number, because the mean of its divisors is an integer number (1676395921230).

Almost surely, 2^{20113031201223} is an apocalyptic number.

20113031201223 is a deficient number, since it is larger than the sum of its proper divisors (6709303538457).

20113031201223 is a wasteful number, since it uses less digits than its factorization.

20113031201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68786.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20113031201223 its reverse (32210213031102), we get a palindrome (52323244232325).

The spelling of 20113031201223 in words is "twenty trillion, one hundred thirteen billion, thirty-one million, two hundred one thousand, two hundred twenty-three".