1121430432 has 48 divisors (see below), whose sum is σ = 3116921472. Its totient is φ = 351820800.

The previous prime is 1121430421. The next prime is 1121430439. The reversal of 1121430432 is 2340341211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1121430399 and 1121430408.

It is not an unprimeable number, because it can be changed into a prime (1121430439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341944 + ... + 345207.

It is an arithmetic number, because the mean of its divisors is an integer number (64935864).

Almost surely, 2^1121430432 is an apocalyptic number.

1121430432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121430432 is an abundant number, since it is smaller than the sum of its proper divisors (1995491040).

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

1121430432 is a wasteful number, since it uses less digits than its factorization.

1121430432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687181 (or 687173 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1121430432 is about 33487.7654076828. The cubic root of 1121430432 is about 1038.9407459593.

Adding to 1121430432 its reverse (2340341211), we get a palindrome (3461771643).

The spelling of 1121430432 in words is "one billion, one hundred twenty-one million, four hundred thirty thousand, four hundred thirty-two".