20233231243 has 2 divisors, whose sum is σ = 20233231244. Its totient is φ = 20233231242.

The previous prime is 20233231231. The next prime is 20233231247. The reversal of 20233231243 is 34213233202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20233231243 - 2⁵ = 20233231211 is a prime.

It is a super-2 number, since 2×20233231243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20233231247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116615621 + 10116615622.

It is an arithmetic number, because the mean of its divisors is an integer number (10116615622).

Almost surely, 2^20233231243 is an apocalyptic number.

20233231243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233231243 is an equidigital number, since it uses as much as digits as its factorization.

20233231243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20233231243 its reverse (34213233202), we get a palindrome (54446464445).

The spelling of 20233231243 in words is "twenty billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred forty-three".