12132440441 has 4 divisors (see below), whose sum is σ = 13235389584. Its totient is φ = 11029491300.

The previous prime is 12132440417. The next prime is 12132440447. The reversal of 12132440441 is 14404423121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12132440441 - 2³⁰ = 11058698617 is a prime.

It is a super-2 number, since 2×12132440441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12132440441.

It is not an unprimeable number, because it can be changed into a prime (12132440447) 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, 551474555 + ... + 551474576.

It is an arithmetic number, because the mean of its divisors is an integer number (3308847396).

Almost surely, 2^12132440441 is an apocalyptic number.

12132440441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12132440441 is a deficient number, since it is larger than the sum of its proper divisors (1102949143).

12132440441 is a wasteful number, since it uses less digits than its factorization.

12132440441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102949142.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12132440441 its reverse (14404423121), we get a palindrome (26536863562).

The spelling of 12132440441 in words is "twelve billion, one hundred thirty-two million, four hundred forty thousand, four hundred forty-one".