1113032412 has 72 divisors (see below), whose sum is σ = 2981618640. Its totient is φ = 349466880.

The previous prime is 1113032411. The next prime is 1113032429. The reversal of 1113032412 is 2142303111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113032411) 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, 29803 + ... + 55805.

It is an arithmetic number, because the mean of its divisors is an integer number (41411370).

Almost surely, 2^1113032412 is an apocalyptic number.

1113032412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113032412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490809320).

1113032412 is an abundant number, since it is smaller than the sum of its proper divisors (1868586228).

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

1113032412 is a wasteful number, since it uses less digits than its factorization.

1113032412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26083 (or 26078 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1113032412 is about 33362.1403989612. The cubic root of 1113032412 is about 1036.3408177382.

Adding to 1113032412 its reverse (2142303111), we get a palindrome (3255335523).

The spelling of 1113032412 in words is "one billion, one hundred thirteen million, thirty-two thousand, four hundred twelve".