1111011223 has 8 divisors (see below), whose sum is σ = 1269979040. Its totient is φ = 952106400.

The previous prime is 1111011197. The next prime is 1111011233. The reversal of 1111011223 is 3221101111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1111011223 - 2⁹ = 1111010711 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 (1111011233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31513 + ... + 56701.

It is an arithmetic number, because the mean of its divisors is an integer number (158747380).

Almost surely, 2^1111011223 is an apocalyptic number.

1111011223 is a deficient number, since it is larger than the sum of its proper divisors (158967817).

1111011223 is an equidigital number, since it uses as much as digits as its factorization.

1111011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31497.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1111011223 is about 33331.8349779906. The cubic root of 1111011223 is about 1035.7131301626.

Adding to 1111011223 its reverse (3221101111), we get a palindrome (4332112334).

The spelling of 1111011223 in words is "one billion, one hundred eleven million, eleven thousand, two hundred twenty-three".