23242021144431 has 4 divisors (see below), whose sum is σ = 30989361525912. Its totient is φ = 15494680762952.

The previous prime is 23242021144427. The next prime is 23242021144457. The reversal of 23242021144431 is 13444112024232.

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 23242021144431 - 2² = 23242021144427 is a prime.

It is a super-2 number, since 2×23242021144431² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23242021144392 and 23242021144401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23242021104431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873670190736 + ... + 3873670190741.

It is an arithmetic number, because the mean of its divisors is an integer number (7747340381478).

Almost surely, 2^{23242021144431} is an apocalyptic number.

23242021144431 is a deficient number, since it is larger than the sum of its proper divisors (7747340381481).

23242021144431 is an equidigital number, since it uses as much as digits as its factorization.

23242021144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7747340381480.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 23242021144431 its reverse (13444112024232), we get a palindrome (36686133168663).

The spelling of 23242021144431 in words is "twenty-three trillion, two hundred forty-two billion, twenty-one million, one hundred forty-four thousand, four hundred thirty-one".