43130444431 has 2 divisors, whose sum is σ = 43130444432. Its totient is φ = 43130444430.

The previous prime is 43130444393. The next prime is 43130444453. The reversal of 43130444431 is 13444403134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43130444431 is a prime.

It is a super-2 number, since 2×43130444431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43130444393 and 43130444402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43130444471) 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, 21565222215 + 21565222216.

It is an arithmetic number, because the mean of its divisors is an integer number (21565222216).

Almost surely, 2^43130444431 is an apocalyptic number.

43130444431 is a deficient number, since it is larger than the sum of its proper divisors (1).

43130444431 is an equidigital number, since it uses as much as digits as its factorization.

43130444431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 43130444431 its reverse (13444403134), we get a palindrome (56574847565).

The spelling of 43130444431 in words is "forty-three billion, one hundred thirty million, four hundred forty-four thousand, four hundred thirty-one".