43231004431 has 8 divisors (see below), whose sum is σ = 43460114544. Its totient is φ = 43001992320.

The previous prime is 43231004363. The next prime is 43231004473. The reversal of 43231004431 is 13440013234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43231004431 - 2¹⁹ = 43230480143 is a prime.

It is a super-2 number, since 2×43231004431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43231004396 and 43231004405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43231004731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965271 + ... + 1009063.

It is an arithmetic number, because the mean of its divisors is an integer number (5432514318).

Almost surely, 2^43231004431 is an apocalyptic number.

43231004431 is a deficient number, since it is larger than the sum of its proper divisors (229110113).

43231004431 is a wasteful number, since it uses less digits than its factorization.

43231004431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49001.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43231004431 its reverse (13440013234), we get a palindrome (56671017665).

The spelling of 43231004431 in words is "forty-three billion, two hundred thirty-one million, four thousand, four hundred thirty-one".