11421244127 has 4 divisors (see below), whose sum is σ = 11577699600. Its totient is φ = 11264788656.

The previous prime is 11421244123. The next prime is 11421244151. The reversal of 11421244127 is 72144212411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72144212411 = 557 ⋅129522823.

It is a cyclic number.

It is not a de Polignac number, because 11421244127 - 2² = 11421244123 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 11421244127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421244123) 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, 78227627 + ... + 78227772.

It is an arithmetic number, because the mean of its divisors is an integer number (2894424900).

Almost surely, 2^11421244127 is an apocalyptic number.

11421244127 is a deficient number, since it is larger than the sum of its proper divisors (156455473).

11421244127 is an equidigital number, since it uses as much as digits as its factorization.

11421244127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156455472.

The product of its digits is 3584, while the sum is 29.

Adding to 11421244127 its reverse (72144212411), we get a palindrome (83565456538).

The spelling of 11421244127 in words is "eleven billion, four hundred twenty-one million, two hundred forty-four thousand, one hundred twenty-seven".