11231023 has 4 divisors (see below), whose sum is σ = 11316888. Its totient is φ = 11145160.

The previous prime is 11230939. The next prime is 11231027. The reversal of 11231023 is 32013211.

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 11231023 - 2¹⁷ = 11099951 is a prime.

It is a super-2 number, since 2×11231023² = 252271755253058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11230994 and 11231012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231027) 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, 42736 + ... + 42997.

It is an arithmetic number, because the mean of its divisors is an integer number (2829222).

Almost surely, 2^11231023 is an apocalyptic number.

11231023 is a deficient number, since it is larger than the sum of its proper divisors (85865).

11231023 is an equidigital number, since it uses as much as digits as its factorization.

11231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85864.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11231023 is about 3351.2718481198. The cubic root of 11231023 is about 223.9441758742.

Adding to 11231023 its reverse (32013211), we get a palindrome (43244234).

The spelling of 11231023 in words is "eleven million, two hundred thirty-one thousand, twenty-three".