1123011223 has 16 divisors (see below), whose sum is σ = 1162584576. Its totient is φ = 1084262400.

The previous prime is 1123011181. The next prime is 1123011233. The reversal of 1123011223 is 3221103211.

It is a cyclic number.

It is not a de Polignac number, because 1123011223 - 2⁹ = 1123010711 is a prime.

It is a super-2 number, since 2×1123011223² = 2522308413967911458, 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 = 1123011197 and 1123011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123011233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032586 + ... + 1033672.

It is an arithmetic number, because the mean of its divisors is an integer number (72661536).

Almost surely, 2^1123011223 is an apocalyptic number.

1123011223 is a deficient number, since it is larger than the sum of its proper divisors (39573353).

1123011223 is a wasteful number, since it uses less digits than its factorization.

1123011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1123011223 is about 33511.3596113318. The cubic root of 1123011223 is about 1039.4286873842.

Adding to 1123011223 its reverse (3221103211), we get a palindrome (4344114434).

The spelling of 1123011223 in words is "one billion, one hundred twenty-three million, eleven thousand, two hundred twenty-three".