23231213 has 2 divisors, whose sum is σ = 23231214. Its totient is φ = 23231212.

The previous prime is 23231189. The next prime is 23231237. The reversal of 23231213 is 31213232.

It is a balanced prime because it is at equal distance from previous prime (23231189) and next prime (23231237).

It can be written as a sum of positive squares in only one way, i.e., 22915369 + 315844 = 4787^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231213 - 2⁶ = 23231149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23231191 and 23231200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23230213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615606 + 11615607.

It is an arithmetic number, because the mean of its divisors is an integer number (11615607).

Almost surely, 2^23231213 is an apocalyptic number.

It is an amenable number.

23231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231213 is an equidigital number, since it uses as much as digits as its factorization.

23231213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 17.

The square root of 23231213 is about 4819.8768656471. The cubic root of 23231213 is about 285.3364775265.

Adding to 23231213 its reverse (31213232), we get a palindrome (54444445).

The spelling of 23231213 in words is "twenty-three million, two hundred thirty-one thousand, two hundred thirteen".