1120453512 has 64 divisors (see below), whose sum is σ = 2902348800. Its totient is φ = 360030720.

The previous prime is 1120453511. The next prime is 1120453513. The reversal of 1120453512 is 2153540211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1120453511) and next prime (1120453513).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1120453511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755812 + ... + 757292.

It is an arithmetic number, because the mean of its divisors is an integer number (45349200).

Almost surely, 2^1120453512 is an apocalyptic number.

1120453512 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 1120453512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451174400).

1120453512 is an abundant number, since it is smaller than the sum of its proper divisors (1781895288).

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

1120453512 is a wasteful number, since it uses less digits than its factorization.

1120453512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1120453512 is about 33473.1760070657. The cubic root of 1120453512 is about 1038.6389715971.

Adding to 1120453512 its reverse (2153540211), we get a palindrome (3273993723).

The spelling of 1120453512 in words is "one billion, one hundred twenty million, four hundred fifty-three thousand, five hundred twelve".