23424431243 has 4 divisors (see below), whose sum is σ = 23573631600. Its totient is φ = 23275230888.

The previous prime is 23424431227. The next prime is 23424431249. The reversal of 23424431243 is 34213442432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23424431243 - 2⁴ = 23424431227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23424431249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74599943 + ... + 74600256.

It is an arithmetic number, because the mean of its divisors is an integer number (5893407900).

Almost surely, 2^23424431243 is an apocalyptic number.

23424431243 is a deficient number, since it is larger than the sum of its proper divisors (149200357).

23424431243 is a wasteful number, since it uses less digits than its factorization.

23424431243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149200356.

The product of its digits is 55296, while the sum is 32.

Adding to 23424431243 its reverse (34213442432), we get a palindrome (57637873675).

The spelling of 23424431243 in words is "twenty-three billion, four hundred twenty-four million, four hundred thirty-one thousand, two hundred forty-three".