1123219452 has 12 divisors (see below), whose sum is σ = 2620845416. Its totient is φ = 374406480.

The previous prime is 1123219439. The next prime is 1123219459. The reversal of 1123219452 is 2549123211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123219459) 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, 46800799 + ... + 46800822.

Almost surely, 2^1123219452 is an apocalyptic number.

1123219452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123219452 is an abundant number, since it is smaller than the sum of its proper divisors (1497625964).

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

1123219452 is a wasteful number, since it uses less digits than its factorization.

1123219452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93601628 (or 93601626 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1123219452 is about 33514.4663093417. The cubic root of 1123219452 is about 1039.4929271163.

The spelling of 1123219452 in words is "one billion, one hundred twenty-three million, two hundred nineteen thousand, four hundred fifty-two".