22541431023431 has 4 divisors (see below), whose sum is σ = 22640732481912. Its totient is φ = 22442129564952.

The previous prime is 22541431023421. The next prime is 22541431023439. The reversal of 22541431023431 is 13432013414522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22541431023431 is a prime.

It is a super-2 number, since 2×22541431023431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22541431023391 and 22541431023400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22541431023439) 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, 49650728900 + ... + 49650729353.

It is an arithmetic number, because the mean of its divisors is an integer number (5660183120478).

Almost surely, 2^{22541431023431} is an apocalyptic number.

22541431023431 is a deficient number, since it is larger than the sum of its proper divisors (99301458481).

22541431023431 is an equidigital number, since it uses as much as digits as its factorization.

22541431023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99301458480.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 22541431023431 its reverse (13432013414522), we get a palindrome (35973444437953).

The spelling of 22541431023431 in words is "twenty-two trillion, five hundred forty-one billion, four hundred thirty-one million, twenty-three thousand, four hundred thirty-one".