1123320996 has 36 divisors (see below), whose sum is σ = 3245150272. Its totient is φ = 320948784.

The previous prime is 1123320967. The next prime is 1123321049. The reversal of 1123320996 is 6990233211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1123320996.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2228560 + ... + 2229063.

Almost surely, 2^1123320996 is an apocalyptic number.

It is an amenable number.

1123320996 is an abundant number, since it is smaller than the sum of its proper divisors (2121829276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123320996 is a wasteful number, since it uses less digits than its factorization.

1123320996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457640 (or 4457635 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 1123320996 is about 33515.9812030022. The cubic root of 1123320996 is about 1039.5242510898.

The spelling of 1123320996 in words is "one billion, one hundred twenty-three million, three hundred twenty thousand, nine hundred ninety-six".