12432404441 has 4 divisors (see below), whose sum is σ = 12434590884. Its totient is φ = 12430218000.

The previous prime is 12432404437. The next prime is 12432404459. The reversal of 12432404441 is 14440423421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14440423421 = 491 ⋅29410231.

It can be written as a sum of positive squares in 2 ways, for example, as 11428465216 + 1003939225 = 106904^2 + 31685^2 .

It is a cyclic number.

It is not a de Polignac number, because 12432404441 - 2² = 12432404437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12432404431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084670 + ... + 1096071.

It is an arithmetic number, because the mean of its divisors is an integer number (3108647721).

Almost surely, 2^12432404441 is an apocalyptic number.

It is an amenable number.

12432404441 is a deficient number, since it is larger than the sum of its proper divisors (2186443).

12432404441 is an equidigital number, since it uses as much as digits as its factorization.

12432404441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186442.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 12432404441 its reverse (14440423421), we get a palindrome (26872827862).

The spelling of 12432404441 in words is "twelve billion, four hundred thirty-two million, four hundred four thousand, four hundred forty-one".