24431232140243 has 4 divisors (see below), whose sum is σ = 24431245516320. Its totient is φ = 24431218764168.

The previous prime is 24431232140221. The next prime is 24431232140281. The reversal of 24431232140243 is 34204123213442.

It is a happy number.

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 24431232140243 - 2²² = 24431227945939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24431232149243) 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, 3414080 + ... + 7779357.

It is an arithmetic number, because the mean of its divisors is an integer number (6107811379080).

Almost surely, 2^{24431232140243} is an apocalyptic number.

24431232140243 is a deficient number, since it is larger than the sum of its proper divisors (13376077).

24431232140243 is a wasteful number, since it uses less digits than its factorization.

24431232140243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13376076.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 24431232140243 its reverse (34204123213442), we get a palindrome (58635355353685).

The spelling of 24431232140243 in words is "twenty-four trillion, four hundred thirty-one billion, two hundred thirty-two million, one hundred forty thousand, two hundred forty-three".