23401243 has 4 divisors (see below), whose sum is σ = 23411128. Its totient is φ = 23391360.

The previous prime is 23401211. The next prime is 23401267. The reversal of 23401243 is 34210432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23401243 - 2⁵ = 23401211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 23401243.

It is not an unprimeable number, because it can be changed into a prime (23408243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955 + ... + 6907.

It is an arithmetic number, because the mean of its divisors is an integer number (5852782).

Almost surely, 2^23401243 is an apocalyptic number.

23401243 is a deficient number, since it is larger than the sum of its proper divisors (9885).

23401243 is an equidigital number, since it uses as much as digits as its factorization.

23401243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23401243 is about 4837.4831265856. The cubic root of 23401243 is about 286.0309150404.

Adding to 23401243 its reverse (34210432), we get a palindrome (57611675).

The spelling of 23401243 in words is "twenty-three million, four hundred one thousand, two hundred forty-three".