43130120431 has 4 divisors (see below), whose sum is σ = 43178746032. Its totient is φ = 43081494832.

The previous prime is 43130120381. The next prime is 43130120461. The reversal of 43130120431 is 13402103134.

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 43130120431 - 2⁷ = 43130120303 is a prime.

It is a super-2 number, since 2×43130120431² (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 (43130120461) 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 in 3 ways as a sum of consecutive naturals, for example, 24311470 + ... + 24313243.

It is an arithmetic number, because the mean of its divisors is an integer number (10794686508).

Almost surely, 2^43130120431 is an apocalyptic number.

43130120431 is a deficient number, since it is larger than the sum of its proper divisors (48625601).

43130120431 is an equidigital number, since it uses as much as digits as its factorization.

43130120431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48625600.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 43130120431 its reverse (13402103134), we get a palindrome (56532223565).

The spelling of 43130120431 in words is "forty-three billion, one hundred thirty million, one hundred twenty thousand, four hundred thirty-one".