43444130723 has 4 divisors (see below), whose sum is σ = 49650435120. Its totient is φ = 37237826328.

The previous prime is 43444130713. The next prime is 43444130749. The reversal of 43444130723 is 32703144434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32703144434 = 2 ⋅16351572217.

It is a cyclic number.

It is not a de Polignac number, because 43444130723 - 2⁴ = 43444130707 is a prime.

It is a super-2 number, since 2×43444130723² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43444130713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3103152188 + ... + 3103152201.

It is an arithmetic number, because the mean of its divisors is an integer number (12412608780).

Almost surely, 2^43444130723 is an apocalyptic number.

43444130723 is a deficient number, since it is larger than the sum of its proper divisors (6206304397).

43444130723 is an equidigital number, since it uses as much as digits as its factorization.

43444130723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206304396.

The product of its (nonzero) digits is 96768, while the sum is 35.

The spelling of 43444130723 in words is "forty-three billion, four hundred forty-four million, one hundred thirty thousand, seven hundred twenty-three".