22042243431 has 48 divisors (see below), whose sum is σ = 34789474720. Its totient is φ = 13367255040.

The previous prime is 22042243429. The next prime is 22042243529. The reversal of 22042243431 is 13434224022.

22042243431 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 224 + 3 + 431 = 666.

It is not a de Polignac number, because 22042243431 - 2¹ = 22042243429 is a prime.

It is a super-2 number, since 2×22042243431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22042243395 and 22042243404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042243031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2731080 + ... + 2739138.

Almost surely, 2^22042243431 is an apocalyptic number.

22042243431 is a deficient number, since it is larger than the sum of its proper divisors (12747231289).

22042243431 is a wasteful number, since it uses less digits than its factorization.

22042243431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8416 (or 8413 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22042243431 its reverse (13434224022), we get a palindrome (35476467453).

The spelling of 22042243431 in words is "twenty-two billion, forty-two million, two hundred forty-three thousand, four hundred thirty-one".