20232613 has 2 divisors, whose sum is σ = 20232614. Its totient is φ = 20232612.

The previous prime is 20232581. The next prime is 20232629. The reversal of 20232613 is 31623202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 9604 = 4497^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 20232613 - 2⁵ = 20232581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20232683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116306 + 10116307.

It is an arithmetic number, because the mean of its divisors is an integer number (10116307).

Almost surely, 2^20232613 is an apocalyptic number.

It is an amenable number.

20232613 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232613 is an equidigital number, since it uses as much as digits as its factorization.

20232613 is an odious number, because the sum of its binary digits is odd.

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

The square root of 20232613 is about 4498.0676962447. The cubic root of 20232613 is about 272.4900560297.

Adding to 20232613 its reverse (31623202), we get a palindrome (51855815).

The spelling of 20232613 in words is "twenty million, two hundred thirty-two thousand, six hundred thirteen".