43321013423 has 2 divisors, whose sum is σ = 43321013424. Its totient is φ = 43321013422.

The previous prime is 43321013401. The next prime is 43321013459. The reversal of 43321013423 is 32431012334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43321013423 - 2³² = 39026046127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43321013392 and 43321013401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43321013473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21660506711 + 21660506712.

It is an arithmetic number, because the mean of its divisors is an integer number (21660506712).

Almost surely, 2^43321013423 is an apocalyptic number.

43321013423 is a deficient number, since it is larger than the sum of its proper divisors (1).

43321013423 is an equidigital number, since it uses as much as digits as its factorization.

43321013423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 43321013423 its reverse (32431012334), we get a palindrome (75752025757).

The spelling of 43321013423 in words is "forty-three billion, three hundred twenty-one million, thirteen thousand, four hundred twenty-three".