43122231018 has 12 divisors (see below), whose sum is σ = 93431500578. Its totient is φ = 14374077000.

The previous prime is 43122231017. The next prime is 43122231037. The reversal of 43122231018 is 81013222134.

43122231018 is a `hidden beast` number, since 4 + 312 + 22 + 310 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39050897769 + 4071333249 = 197613^2 + 63807^2 .

It is a super-2 number, since 2×43122231018² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43122230982 and 43122231000.

It is not an unprimeable number, because it can be changed into a prime (43122231017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1197839733 + ... + 1197839768.

Almost surely, 2^43122231018 is an apocalyptic number.

43122231018 is an abundant number, since it is smaller than the sum of its proper divisors (50309269560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43122231018 is a wasteful number, since it uses less digits than its factorization.

43122231018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395679509 (or 2395679506 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 43122231018 in words is "forty-three billion, one hundred twenty-two million, two hundred thirty-one thousand, eighteen".