1112131328 has 216 divisors, whose sum is σ = 2922952704. Its totient is φ = 412600320.

The previous prime is 1112131327. The next prime is 1112131337. The reversal of 1112131328 is 8231312111.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112131327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4987025 + ... + 4987247.

Almost surely, 2^1112131328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112131328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461476352).

1112131328 is an abundant number, since it is smaller than the sum of its proper divisors (1810821376).

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

1112131328 is a wasteful number, since it uses less digits than its factorization.

1112131328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 266 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

The square root of 1112131328 is about 33348.6330754350. The cubic root of 1112131328 is about 1036.0610767846.

Adding to 1112131328 its reverse (8231312111), we get a palindrome (9343443439).

The spelling of 1112131328 in words is "one billion, one hundred twelve million, one hundred thirty-one thousand, three hundred twenty-eight".