11279023 has 4 divisors (see below), whose sum is σ = 12890320. Its totient is φ = 9667728.

The previous prime is 11279017. The next prime is 11279033. The reversal of 11279023 is 32097211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32097211 = 313 ⋅102547.

It is not a de Polignac number, because 11279023 - 2²¹ = 9181871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11279003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805638 + ... + 805651.

It is an arithmetic number, because the mean of its divisors is an integer number (3222580).

Almost surely, 2^11279023 is an apocalyptic number.

11279023 is a deficient number, since it is larger than the sum of its proper divisors (1611297).

11279023 is an equidigital number, since it uses as much as digits as its factorization.

11279023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611296.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11279023 is about 3358.4256728414. The cubic root of 11279023 is about 224.2627589913.

The spelling of 11279023 in words is "eleven million, two hundred seventy-nine thousand, twenty-three".