43029172231 has 4 divisors (see below), whose sum is σ = 43064356752. Its totient is φ = 42993987712.

The previous prime is 43029172229. The next prime is 43029172253. The reversal of 43029172231 is 13227192034.

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

It is a cyclic number.

It is not a de Polignac number, because 43029172231 - 2¹ = 43029172229 is a prime.

It is a super-2 number, since 2×43029172231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43029172201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17590426 + ... + 17592871.

It is an arithmetic number, because the mean of its divisors is an integer number (10766089188).

Almost surely, 2^43029172231 is an apocalyptic number.

43029172231 is a deficient number, since it is larger than the sum of its proper divisors (35184521).

43029172231 is a wasteful number, since it uses less digits than its factorization.

43029172231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35184520.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 43029172231 in words is "forty-three billion, twenty-nine million, one hundred seventy-two thousand, two hundred thirty-one".