11243421139 has 4 divisors (see below), whose sum is σ = 11547297424. Its totient is φ = 10939544856.

The previous prime is 11243421107. The next prime is 11243421157. The reversal of 11243421139 is 93112434211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11243421139 - 2⁵ = 11243421107 is a prime.

It is a super-3 number, since 3×11243421139³ (a number of 31 digits) contains 333 as substring.

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 11243421139.

It is not an unprimeable number, because it can be changed into a prime (11243421439) 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, 151938087 + ... + 151938160.

It is an arithmetic number, because the mean of its divisors is an integer number (2886824356).

Almost surely, 2^11243421139 is an apocalyptic number.

11243421139 is a deficient number, since it is larger than the sum of its proper divisors (303876285).

11243421139 is an equidigital number, since it uses as much as digits as its factorization.

11243421139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303876284.

The product of its digits is 5184, while the sum is 31.

The spelling of 11243421139 in words is "eleven billion, two hundred forty-three million, four hundred twenty-one thousand, one hundred thirty-nine".