23231237 has 2 divisors, whose sum is σ = 23231238. Its totient is φ = 23231236.

The previous prime is 23231213. The next prime is 23231267. The reversal of 23231237 is 73213232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12952801 + 10278436 = 3599^2 + 3206^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231237 - 2⁸ = 23230981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615618 + 11615619.

It is an arithmetic number, because the mean of its divisors is an integer number (11615619).

Almost surely, 2^23231237 is an apocalyptic number.

It is an amenable number.

23231237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231237 is an equidigital number, since it uses as much as digits as its factorization.

23231237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 23.

The square root of 23231237 is about 4819.8793553366. The cubic root of 23231237 is about 285.3365757861.

Adding to 23231237 its reverse (73213232), we get a palindrome (96444469).

The spelling of 23231237 in words is "twenty-three million, two hundred thirty-one thousand, two hundred thirty-seven".