1143320140 has 24 divisors (see below), whose sum is σ = 2408656320. Its totient is φ = 455864448.

The previous prime is 1143320131. The next prime is 1143320149. The reversal of 1143320140 is 410233411.

It is an interprime number because it is at equal distance from previous prime (1143320131) and next prime (1143320149).

It is not an unprimeable number, because it can be changed into a prime (1143320149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85060 + ... + 97579.

It is an arithmetic number, because the mean of its divisors is an integer number (100360680).

Almost surely, 2^1143320140 is an apocalyptic number.

1143320140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143320140 is an abundant number, since it is smaller than the sum of its proper divisors (1265336180).

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

1143320140 is a wasteful number, since it uses less digits than its factorization.

1143320140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182961 (or 182959 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143320140 is about 33813.0173158208. The cubic root of 1143320140 is about 1045.6570854284.

Adding to 1143320140 its reverse (410233411), we get a palindrome (1553553551).

The spelling of 1143320140 in words is "one billion, one hundred forty-three million, three hundred twenty thousand, one hundred forty".