11031681223 has 4 divisors (see below), whose sum is σ = 11034146488. Its totient is φ = 11029215960.

The previous prime is 11031681179. The next prime is 11031681247. The reversal of 11031681223 is 32218613011.

It is a happy number.

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 11031681223 - 2⁹ = 11031680711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031681191 and 11031681200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031682223) 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, 1225908 + ... + 1234873.

It is an arithmetic number, because the mean of its divisors is an integer number (2758536622).

Almost surely, 2^11031681223 is an apocalyptic number.

11031681223 is a deficient number, since it is larger than the sum of its proper divisors (2465265).

11031681223 is an equidigital number, since it uses as much as digits as its factorization.

11031681223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465264.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 11031681223 in words is "eleven billion, thirty-one million, six hundred eighty-one thousand, two hundred twenty-three".