22430142243 has 64 divisors (see below), whose sum is σ = 34801643520. Its totient is φ = 14266002816.

The previous prime is 22430142239. The next prime is 22430142263. The reversal of 22430142243 is 34224103422.

22430142243 is a `hidden beast` number, since 2 + 2 + 430 + 1 + 4 + 224 + 3 = 666.

It is not a de Polignac number, because 22430142243 - 2² = 22430142239 is a prime.

It is a super-4 number, since 4×22430142243⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22430142233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11230921 + ... + 11232917.

It is an arithmetic number, because the mean of its divisors is an integer number (543775680).

Almost surely, 2^22430142243 is an apocalyptic number.

22430142243 is a deficient number, since it is larger than the sum of its proper divisors (12371501277).

22430142243 is a wasteful number, since it uses less digits than its factorization.

22430142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273 (or 2267 counting only the distinct ones).

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

Adding to 22430142243 its reverse (34224103422), we get a palindrome (56654245665).

The spelling of 22430142243 in words is "twenty-two billion, four hundred thirty million, one hundred forty-two thousand, two hundred forty-three".