43213430023 has 2 divisors, whose sum is σ = 43213430024. Its totient is φ = 43213430022.

The previous prime is 43213430021. The next prime is 43213430069. The reversal of 43213430023 is 32003431234.

43213430023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43213430023 - 2¹ = 43213430021 is a prime.

Together with 43213430021, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43213430023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43213430021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21606715011 + 21606715012.

It is an arithmetic number, because the mean of its divisors is an integer number (21606715012).

Almost surely, 2^43213430023 is an apocalyptic number.

43213430023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43213430023 is an equidigital number, since it uses as much as digits as its factorization.

43213430023 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 25.

Adding to 43213430023 its reverse (32003431234), we get a palindrome (75216861257).

The spelling of 43213430023 in words is "forty-three billion, two hundred thirteen million, four hundred thirty thousand, twenty-three".