11421244129 has 4 divisors (see below), whose sum is σ = 11421590320. Its totient is φ = 11420897940.

The previous prime is 11421244123. The next prime is 11421244151. The reversal of 11421244129 is 92144212411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92144212411 = 9661 ⋅9537751.

It is a cyclic number.

It is not a de Polignac number, because 11421244129 - 2¹³ = 11421235937 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 11421244129.

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, 117699 + ... + 191560.

It is an arithmetic number, because the mean of its divisors is an integer number (2855397580).

Almost surely, 2^11421244129 is an apocalyptic number.

It is an amenable number.

11421244129 is a deficient number, since it is larger than the sum of its proper divisors (346191).

11421244129 is an equidigital number, since it uses as much as digits as its factorization.

11421244129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346190.

The product of its digits is 4608, while the sum is 31.

The spelling of 11421244129 in words is "eleven billion, four hundred twenty-one million, two hundred forty-four thousand, one hundred twenty-nine".