11241201421 has 4 divisors (see below), whose sum is σ = 11250439452. Its totient is φ = 11231963392.

The previous prime is 11241201409. The next prime is 11241201469. The reversal of 11241201421 is 12410214211.

It is a happy number.

11241201421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12410214211 = 19 ⋅653169169.

It can be written as a sum of positive squares in 2 ways, for example, as 7834728196 + 3406473225 = 88514^2 + 58365^2 .

It is a cyclic number.

It is not a de Polignac number, because 11241201421 - 2¹⁷ = 11241070349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11241202421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4617190 + ... + 4619623.

It is an arithmetic number, because the mean of its divisors is an integer number (2812609863).

Almost surely, 2^11241201421 is an apocalyptic number.

It is an amenable number.

11241201421 is a deficient number, since it is larger than the sum of its proper divisors (9238031).

11241201421 is an equidigital number, since it uses as much as digits as its factorization.

11241201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9238030.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11241201421 its reverse (12410214211), we get a palindrome (23651415632).

The spelling of 11241201421 in words is "eleven billion, two hundred forty-one million, two hundred one thousand, four hundred twenty-one".