23202013 has 2 divisors, whose sum is σ = 23202014. Its totient is φ = 23202012.

The previous prime is 23201999. The next prime is 23202029. The reversal of 23202013 is 31020232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15705369 + 7496644 = 3963^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 23202013 - 2⁹ = 23201501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23201984 and 23202002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601006 + 11601007.

It is an arithmetic number, because the mean of its divisors is an integer number (11601007).

Almost surely, 2^23202013 is an apocalyptic number.

It is an amenable number.

23202013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202013 is an equidigital number, since it uses as much as digits as its factorization.

23202013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23202013 is about 4816.8467901730. The cubic root of 23202013 is about 285.2168781119.

Adding to 23202013 its reverse (31020232), we get a palindrome (54222245).

The spelling of 23202013 in words is "twenty-three million, two hundred two thousand, thirteen".