12421401241 has 8 divisors (see below), whose sum is σ = 12507510600. Its totient is φ = 12335328768.

The previous prime is 12421401217. The next prime is 12421401247. The reversal of 12421401241 is 14210412421.

It can be written as a sum of positive squares in 4 ways, for example, as 62410000 + 12358991241 = 7900^2 + 111171^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12421401241 - 2³¹ = 10273917593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12421401247) 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, 1276105 + ... + 1285801.

It is an arithmetic number, because the mean of its divisors is an integer number (1563438825).

Almost surely, 2^12421401241 is an apocalyptic number.

It is an amenable number.

12421401241 is a deficient number, since it is larger than the sum of its proper divisors (86109359).

12421401241 is an equidigital number, since it uses as much as digits as its factorization.

12421401241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12421401241 its reverse (14210412421), we get a palindrome (26631813662).

The spelling of 12421401241 in words is "twelve billion, four hundred twenty-one million, four hundred one thousand, two hundred forty-one".