12443011 has 8 divisors (see below), whose sum is σ = 14511200. Its totient is φ = 10665144.

The previous prime is 12442999. The next prime is 12443029. The reversal of 12443011 is 11034421.

12443011 = T₇₉ + T₈₀ + ... + T₄₂₁.

It is not a de Polignac number, because 12443011 - 2⁵ = 12442979 is a prime.

It is a super-2 number, since 2×12443011² = 309657045492242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17796 + ... + 18481.

It is an arithmetic number, because the mean of its divisors is an integer number (1813900).

Almost surely, 2^12443011 is an apocalyptic number.

12443011 is a deficient number, since it is larger than the sum of its proper divisors (2068189).

12443011 is an frugal number, since it uses more digits than its factorization.

12443011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36298 (or 36284 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12443011 is about 3527.4652372490. The cubic root of 12443011 is about 231.7262116548.

Adding to 12443011 its reverse (11034421), we get a palindrome (23477432).

The spelling of 12443011 in words is "twelve million, four hundred forty-three thousand, eleven".