1143012432 has 80 divisors (see below), whose sum is σ = 3032805888. Its totient is φ = 370728960.

The previous prime is 1143012421. The next prime is 1143012491. The reversal of 1143012432 is 2342103411.

It is a junction number, because it is equal to n+sod(n) for n = 1143012399 and 1143012408.

It is a congruent number.

It is an unprimeable number.

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, 1324033 + ... + 1324895.

Almost surely, 2^1143012432 is an apocalyptic number.

1143012432 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 1143012432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516402944).

1143012432 is an abundant number, since it is smaller than the sum of its proper divisors (1889793456).

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

1143012432 is a wasteful number, since it uses less digits than its factorization.

1143012432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1582 counting only the distinct ones).

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

The square root of 1143012432 is about 33808.4668685227. The cubic root of 1143012432 is about 1045.5632692087.

Adding to 1143012432 its reverse (2342103411), we get a palindrome (3485115843).

The spelling of 1143012432 in words is "one billion, one hundred forty-three million, twelve thousand, four hundred thirty-two".