43430240431 has 2 divisors, whose sum is σ = 43430240432. Its totient is φ = 43430240430.

The previous prime is 43430240423. The next prime is 43430240449. The reversal of 43430240431 is 13404203434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43430240431 - 2³ = 43430240423 is a prime.

It is a super-2 number, since 2×43430240431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43430240431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43430240411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21715120215 + 21715120216.

It is an arithmetic number, because the mean of its divisors is an integer number (21715120216).

Almost surely, 2^43430240431 is an apocalyptic number.

43430240431 is a deficient number, since it is larger than the sum of its proper divisors (1).

43430240431 is an equidigital number, since it uses as much as digits as its factorization.

43430240431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 43430240431 its reverse (13404203434), we get a palindrome (56834443865).

The spelling of 43430240431 in words is "forty-three billion, four hundred thirty million, two hundred forty thousand, four hundred thirty-one".