24401231 has 2 divisors, whose sum is σ = 24401232. Its totient is φ = 24401230.

The previous prime is 24401213. The next prime is 24401233. The reversal of 24401231 is 13210442.

Together with previous prime (24401213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24401231 is a prime.

It is a super-2 number, since 2×24401231² = 1190840148630722, which contains 22 as substring.

Together with 24401233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24401233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12200615 + 12200616.

It is an arithmetic number, because the mean of its divisors is an integer number (12200616).

Almost surely, 2^24401231 is an apocalyptic number.

24401231 is a deficient number, since it is larger than the sum of its proper divisors (1).

24401231 is an equidigital number, since it uses as much as digits as its factorization.

24401231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 24401231 is about 4939.7602168526. The cubic root of 24401231 is about 290.0484699008.

Adding to 24401231 its reverse (13210442), we get a palindrome (37611673).

The spelling of 24401231 in words is "twenty-four million, four hundred one thousand, two hundred thirty-one".