12443089345 has 4 divisors (see below), whose sum is σ = 14931707220. Its totient is φ = 9954471472.

The previous prime is 12443089301. The next prime is 12443089409. The reversal of 12443089345 is 54398034421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54398034421 = 937 ⋅58055533.

It can be written as a sum of positive squares in 2 ways, for example, as 3770451216 + 8672638129 = 61404^2 + 93127^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443089345 - 2¹³ = 12443081153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244308930 + ... + 1244308939.

It is an arithmetic number, because the mean of its divisors is an integer number (3732926805).

Almost surely, 2^12443089345 is an apocalyptic number.

It is an amenable number.

12443089345 is a deficient number, since it is larger than the sum of its proper divisors (2488617875).

12443089345 is an equidigital number, since it uses as much as digits as its factorization.

12443089345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488617874.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 12443089345 in words is "twelve billion, four hundred forty-three million, eighty-nine thousand, three hundred forty-five".