11012231 has 6 divisors (see below), whose sum is σ = 11289096. Its totient is φ = 10742000.

The previous prime is 11012227. The next prime is 11012233. The reversal of 11012231 is 13221011.

It is not a de Polignac number, because 11012231 - 2² = 11012227 is a prime.

It is a super-2 number, since 2×11012231² = 242538463194722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1595 + ... + 4956.

It is an arithmetic number, because the mean of its divisors is an integer number (1881516).

Almost surely, 2^11012231 is an apocalyptic number.

11012231 is a deficient number, since it is larger than the sum of its proper divisors (276865).

11012231 is an frugal number, since it uses more digits than its factorization.

11012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633 (or 6592 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11012231 is about 3318.4681707077. The cubic root of 11012231 is about 222.4804073140.

Adding to 11012231 its reverse (13221011), we get a palindrome (24233242).

The spelling of 11012231 in words is "eleven million, twelve thousand, two hundred thirty-one".