43444123423 has 2 divisors, whose sum is σ = 43444123424. Its totient is φ = 43444123422.

The previous prime is 43444123391. The next prime is 43444123439. The reversal of 43444123423 is 32432144434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43444123423 - 2⁵ = 43444123391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43444123453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21722061711 + 21722061712.

It is an arithmetic number, because the mean of its divisors is an integer number (21722061712).

Almost surely, 2^43444123423 is an apocalyptic number.

43444123423 is a deficient number, since it is larger than the sum of its proper divisors (1).

43444123423 is an equidigital number, since it uses as much as digits as its factorization.

43444123423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 34.

Adding to 43444123423 its reverse (32432144434), we get a palindrome (75876267857).

The spelling of 43444123423 in words is "forty-three billion, four hundred forty-four million, one hundred twenty-three thousand, four hundred twenty-three".