43242223131 has 24 divisors (see below), whose sum is σ = 62872380480. Its totient is φ = 28638544896.

The previous prime is 43242223117. The next prime is 43242223151. The reversal of 43242223131 is 13132224234.

43242223131 is a `hidden beast` number, since 4 + 3 + 2 + 422 + 231 + 3 + 1 = 666.

It is not a de Polignac number, because 43242223131 - 2²⁹ = 42705352219 is a prime.

It is a super-2 number, since 2×43242223131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43242223095 and 43242223104.

It is not an unprimeable number, because it can be changed into a prime (43242223151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2055675 + ... + 2076603.

It is an arithmetic number, because the mean of its divisors is an integer number (2619682520).

Almost surely, 2^43242223131 is an apocalyptic number.

43242223131 is a deficient number, since it is larger than the sum of its proper divisors (19630157349).

43242223131 is a wasteful number, since it uses less digits than its factorization.

43242223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22435 (or 22432 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 43242223131 its reverse (13132224234), we get a palindrome (56374447365).

The spelling of 43242223131 in words is "forty-three billion, two hundred forty-two million, two hundred twenty-three thousand, one hundred thirty-one".