1142321112 has 24 divisors (see below), whose sum is σ = 3093786540. Its totient is φ = 380773680.

The previous prime is 1142321111. The next prime is 1142321113. The reversal of 1142321112 is 2111232411.

It is an interprime number because it is at equal distance from previous prime (1142321111) and next prime (1142321113).

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142321111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7932714 + ... + 7932857.

Almost surely, 2^1142321112 is an apocalyptic number.

1142321112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142321112 is an abundant number, since it is smaller than the sum of its proper divisors (1951465428).

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

1142321112 is a wasteful number, since it uses less digits than its factorization.

1142321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15865583 (or 15865576 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1142321112 is about 33798.2412560180. The cubic root of 1142321112 is about 1045.3524331893.

Adding to 1142321112 its reverse (2111232411), we get a palindrome (3253553523).

The spelling of 1142321112 in words is "one billion, one hundred forty-two million, three hundred twenty-one thousand, one hundred twelve".