20233523 has 2 divisors, whose sum is σ = 20233524. Its totient is φ = 20233522.

The previous prime is 20233511. The next prime is 20233529. The reversal of 20233523 is 32533202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20233523 - 2¹² = 20229427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20233495 and 20233504.

It is not a weakly prime, because it can be changed into another prime (20233529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116761 + 10116762.

It is an arithmetic number, because the mean of its divisors is an integer number (10116762).

Almost surely, 2^20233523 is an apocalyptic number.

20233523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233523 is an equidigital number, since it uses as much as digits as its factorization.

20233523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 20233523 is about 4498.1688496543. The cubic root of 20233523 is about 272.4941412202.

Adding to 20233523 its reverse (32533202), we get a palindrome (52766725).

The spelling of 20233523 in words is "twenty million, two hundred thirty-three thousand, five hundred twenty-three".