43120204431 has 16 divisors (see below), whose sum is σ = 60667418880. Its totient is φ = 27187983680.

The previous prime is 43120204427. The next prime is 43120204441. The reversal of 43120204431 is 13440202134.

It is a cyclic number.

It is not a de Polignac number, because 43120204431 - 2² = 43120204427 is a prime.

It is a super-2 number, since 2×43120204431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43120204441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3504705 + ... + 3516986.

It is an arithmetic number, because the mean of its divisors is an integer number (3791713680).

Almost surely, 2^43120204431 is an apocalyptic number.

43120204431 is a deficient number, since it is larger than the sum of its proper divisors (17547214449).

43120204431 is a wasteful number, since it uses less digits than its factorization.

43120204431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021806.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43120204431 its reverse (13440202134), we get a palindrome (56560406565).

The spelling of 43120204431 in words is "forty-three billion, one hundred twenty million, two hundred four thousand, four hundred thirty-one".