11231013223 has 4 divisors (see below), whose sum is σ = 11231717760. Its totient is φ = 11230308688.

The previous prime is 11231013217. The next prime is 11231013239. The reversal of 11231013223 is 32231013211.

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 11231013223 - 2²¹ = 11228916071 is a prime.

It is a super-2 number, since 2×11231013223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11231013223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231013203) 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, 327790 + ... + 360427.

It is an arithmetic number, because the mean of its divisors is an integer number (2807929440).

Almost surely, 2^11231013223 is an apocalyptic number.

11231013223 is a deficient number, since it is larger than the sum of its proper divisors (704537).

11231013223 is an equidigital number, since it uses as much as digits as its factorization.

11231013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704536.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11231013223 its reverse (32231013211), we get a palindrome (43462026434).

The spelling of 11231013223 in words is "eleven billion, two hundred thirty-one million, thirteen thousand, two hundred twenty-three".