20113332110231 has 4 divisors (see below), whose sum is σ = 20113720008600. Its totient is φ = 20112944211864.

The previous prime is 20113332110171. The next prime is 20113332110341. The reversal of 20113332110231 is 13201123331102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20113332110231 - 2¹⁸ = 20113331848087 is a prime.

It is a super-2 number, since 2×20113332110231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113332110197 and 20113332110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113332110731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193871396 + ... + 193975113.

It is an arithmetic number, because the mean of its divisors is an integer number (5028430002150).

Almost surely, 2^{20113332110231} is an apocalyptic number.

20113332110231 is a deficient number, since it is larger than the sum of its proper divisors (387898369).

20113332110231 is an equidigital number, since it uses as much as digits as its factorization.

20113332110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387898368.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20113332110231 its reverse (13201123331102), we get a palindrome (33314455441333).

The spelling of 20113332110231 in words is "twenty trillion, one hundred thirteen billion, three hundred thirty-two million, one hundred ten thousand, two hundred thirty-one".