20233112233 has 4 divisors (see below), whose sum is σ = 20510278228. Its totient is φ = 19955946240.

The previous prime is 20233112219. The next prime is 20233112243. The reversal of 20233112233 is 33221133202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5491995664 + 14741116569 = 74108^2 + 121413^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233112233 - 2⁹ = 20233111721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20233112243) 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, 138582888 + ... + 138583033.

It is an arithmetic number, because the mean of its divisors is an integer number (5127569557).

Almost surely, 2^20233112233 is an apocalyptic number.

It is an amenable number.

20233112233 is a deficient number, since it is larger than the sum of its proper divisors (277165995).

20233112233 is an equidigital number, since it uses as much as digits as its factorization.

20233112233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277165994.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20233112233 its reverse (33221133202), we get a palindrome (53454245435).

The spelling of 20233112233 in words is "twenty billion, two hundred thirty-three million, one hundred twelve thousand, two hundred thirty-three".