43432531423 has 2 divisors, whose sum is σ = 43432531424. Its totient is φ = 43432531422.

The previous prime is 43432531421. The next prime is 43432531477. The reversal of 43432531423 is 32413523434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43432531423 - 2¹ = 43432531421 is a prime.

Together with 43432531421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43432531421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21716265711 + 21716265712.

It is an arithmetic number, because the mean of its divisors is an integer number (21716265712).

Almost surely, 2^43432531423 is an apocalyptic number.

43432531423 is a deficient number, since it is larger than the sum of its proper divisors (1).

43432531423 is an equidigital number, since it uses as much as digits as its factorization.

43432531423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 34.

The spelling of 43432531423 in words is "forty-three billion, four hundred thirty-two million, five hundred thirty-one thousand, four hundred twenty-three".