1121042223 has 12 divisors (see below), whose sum is σ = 1850609488. Its totient is φ = 640595520.

The previous prime is 1121042179. The next prime is 1121042227. The reversal of 1121042223 is 3222401211.

It is a happy number.

1121042223 is a `hidden beast` number, since 11 + 210 + 422 + 23 = 666.

It is not a de Polignac number, because 1121042223 - 2⁹ = 1121041711 is a prime.

It is a super-3 number, since 3×1121042223³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121042196 and 1121042205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121042227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8897098 + ... + 8897223.

Almost surely, 2^1121042223 is an apocalyptic number.

1121042223 is a deficient number, since it is larger than the sum of its proper divisors (729567265).

1121042223 is a wasteful number, since it uses less digits than its factorization.

1121042223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17794334 (or 17794331 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1121042223 is about 33481.9686249181. The cubic root of 1121042223 is about 1038.8208476920.

Adding to 1121042223 its reverse (3222401211), we get a palindrome (4343443434).

The spelling of 1121042223 in words is "one billion, one hundred twenty-one million, forty-two thousand, two hundred twenty-three".