1143116520 has 128 divisors (see below), whose sum is σ = 4220778240. Its totient is φ = 241182720.

The previous prime is 1143116501. The next prime is 1143116573. The reversal of 1143116520 is 256113411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 31 ways as a sum of consecutive naturals, for example, 41421 + ... + 63260.

It is an arithmetic number, because the mean of its divisors is an integer number (32974830).

Almost surely, 2^1143116520 is an apocalyptic number.

1143116520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143116520 is an abundant number, since it is smaller than the sum of its proper divisors (3077661720).

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

1143116520 is a wasteful number, since it uses less digits than its factorization.

1143116520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104715 (or 104711 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1143116520 is about 33810.0062111796. The cubic root of 1143116520 is about 1045.5950061882.

Adding to 1143116520 its reverse (256113411), we get a palindrome (1399229931).

The spelling of 1143116520 in words is "one billion, one hundred forty-three million, one hundred sixteen thousand, five hundred twenty".