1121130432 has 42 divisors (see below), whose sum is σ = 3213519608. Its totient is φ = 373709952.

The previous prime is 1121130389. The next prime is 1121130487. The reversal of 1121130432 is 2340311211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 972628 + ... + 973779.

Almost surely, 2^1121130432 is an apocalyptic number.

1121130432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121130432 is an abundant number, since it is smaller than the sum of its proper divisors (2092389176).

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

1121130432 is a wasteful number, since it uses less digits than its factorization.

1121130432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946425 (or 1946412 counting only the distinct ones).

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

The square root of 1121130432 is about 33483.2858602617. The cubic root of 1121130432 is about 1038.8480934528.

Adding to 1121130432 its reverse (2340311211), we get a palindrome (3461441643).

The spelling of 1121130432 in words is "one billion, one hundred twenty-one million, one hundred thirty thousand, four hundred thirty-two".