11271299 has 4 divisors (see below), whose sum is σ = 12138336. Its totient is φ = 10404264.

The previous prime is 11271277. The next prime is 11271319. The reversal of 11271299 is 99217211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99217211 = 43 ⋅2307377.

It is a de Polignac number, because none of the positive numbers 2^k-11271299 is a prime.

It is a super-2 number, since 2×11271299² = 254084362294802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11271229) 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, 433499 + ... + 433524.

It is an arithmetic number, because the mean of its divisors is an integer number (3034584).

Almost surely, 2^11271299 is an apocalyptic number.

11271299 is a deficient number, since it is larger than the sum of its proper divisors (867037).

11271299 is an equidigital number, since it uses as much as digits as its factorization.

11271299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867036.

The product of its digits is 2268, while the sum is 32.

The square root of 11271299 is about 3357.2755323327. The cubic root of 11271299 is about 224.2115547599.

The spelling of 11271299 in words is "eleven million, two hundred seventy-one thousand, two hundred ninety-nine".