22023301231 has 4 divisors (see below), whose sum is σ = 22023924952. Its totient is φ = 22022677512.

The previous prime is 22023301229. The next prime is 22023301243. The reversal of 22023301231 is 13210332022.

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 22023301231 - 2¹ = 22023301229 is a prime.

It is a super-2 number, since 2×22023301231² (a number of 21 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 = 22023301199 and 22023301208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023301291) 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, 255501 + ... + 330646.

It is an arithmetic number, because the mean of its divisors is an integer number (5505981238).

Almost surely, 2^22023301231 is an apocalyptic number.

22023301231 is a deficient number, since it is larger than the sum of its proper divisors (623721).

22023301231 is an equidigital number, since it uses as much as digits as its factorization.

22023301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623720.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22023301231 its reverse (13210332022), we get a palindrome (35233633253).

The spelling of 22023301231 in words is "twenty-two billion, twenty-three million, three hundred one thousand, two hundred thirty-one".