12511345441 has 8 divisors (see below), whose sum is σ = 14349567744. Its totient is φ = 10685844960.

The previous prime is 12511345417. The next prime is 12511345453. The reversal of 12511345441 is 14454311521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12511345441 - 2⁵ = 12511345409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511345741) 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, 3178345 + ... + 3182278.

It is an arithmetic number, because the mean of its divisors is an integer number (1793695968).

Almost surely, 2^12511345441 is an apocalyptic number.

It is an amenable number.

12511345441 is a deficient number, since it is larger than the sum of its proper divisors (1838222303).

12511345441 is an equidigital number, since it uses as much as digits as its factorization.

12511345441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360911.

The product of its digits is 9600, while the sum is 31.

Adding to 12511345441 its reverse (14454311521), we get a palindrome (26965656962).

The spelling of 12511345441 in words is "twelve billion, five hundred eleven million, three hundred forty-five thousand, four hundred forty-one".