12491232841 has 4 divisors (see below), whose sum is σ = 12781726672. Its totient is φ = 12200739012.

The previous prime is 12491232839. The next prime is 12491232857. The reversal of 12491232841 is 14823219421.

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 12491232841 - 2¹ = 12491232839 is a prime.

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 12491232841.

It is not an unprimeable number, because it can be changed into a prime (12491232821) 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, 145246851 + ... + 145246936.

It is an arithmetic number, because the mean of its divisors is an integer number (3195431668).

Almost surely, 2^12491232841 is an apocalyptic number.

It is an amenable number.

12491232841 is a deficient number, since it is larger than the sum of its proper divisors (290493831).

12491232841 is an equidigital number, since it uses as much as digits as its factorization.

12491232841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290493830.

The product of its digits is 27648, while the sum is 37.

The spelling of 12491232841 in words is "twelve billion, four hundred ninety-one million, two hundred thirty-two thousand, eight hundred forty-one".