20221023003231 has 4 divisors (see below), whose sum is σ = 26961364004312. Its totient is φ = 13480682002152.

The previous prime is 20221023003187. The next prime is 20221023003253. The reversal of 20221023003231 is 13230032012202.

It is a happy number.

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

It is not a de Polignac number, because 20221023003231 - 2²² = 20221018808927 is a prime.

It is a super-2 number, since 2×20221023003231² (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 = 20221023003198 and 20221023003207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221023003271) 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, 3370170500536 + ... + 3370170500541.

It is an arithmetic number, because the mean of its divisors is an integer number (6740341001078).

Almost surely, 2^{20221023003231} is an apocalyptic number.

20221023003231 is a deficient number, since it is larger than the sum of its proper divisors (6740341001081).

20221023003231 is an equidigital number, since it uses as much as digits as its factorization.

20221023003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740341001080.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20221023003231 its reverse (13230032012202), we get a palindrome (33451055015433).

The spelling of 20221023003231 in words is "twenty trillion, two hundred twenty-one billion, twenty-three million, three thousand, two hundred thirty-one".