1142311032 has 32 divisors (see below), whose sum is σ = 3173086800. Its totient is φ = 380770272.

The previous prime is 1142311019. The next prime is 1142311063. The reversal of 1142311032 is 2301132411.

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

It is a junction number, because it is equal to n+sod(n) for n = 1142310996 and 1142311014.

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 7 ways as a sum of consecutive naturals, for example, 2644023 + ... + 2644454.

Almost surely, 2^1142311032 is an apocalyptic number.

1142311032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142311032 is an abundant number, since it is smaller than the sum of its proper divisors (2030775768).

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

1142311032 is a wasteful number, since it uses less digits than its factorization.

1142311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288492 (or 5288482 counting only the distinct ones).

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

The square root of 1142311032 is about 33798.0921355037. The cubic root of 1142311032 is about 1045.3493584019.

Adding to 1142311032 its reverse (2301132411), we get a palindrome (3443443443).

The spelling of 1142311032 in words is "one billion, one hundred forty-two million, three hundred eleven thousand, thirty-two".