11830281 has 4 divisors (see below), whose sum is σ = 15773712. Its totient is φ = 7886852.

The previous prime is 11830277. The next prime is 11830297. The reversal of 11830281 is 18203811.

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.

It is a cyclic number.

It is not a de Polignac number, because 11830281 - 2² = 11830277 is a prime.

It is a super-2 number, since 2×11830281² = 279911097077922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11830201) 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, 1971711 + ... + 1971716.

It is an arithmetic number, because the mean of its divisors is an integer number (3943428).

Almost surely, 2^11830281 is an apocalyptic number.

It is an amenable number.

11830281 is a deficient number, since it is larger than the sum of its proper divisors (3943431).

11830281 is an equidigital number, since it uses as much as digits as its factorization.

11830281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943430.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 11830281 is about 3439.5175533787. The cubic root of 11830281 is about 227.8583877468.

The spelling of 11830281 in words is "eleven million, eight hundred thirty thousand, two hundred eighty-one".