1143403320 has 64 divisors (see below), whose sum is σ = 3433220640. Its totient is φ = 304640000.

The previous prime is 1143403279. The next prime is 1143403361. The reversal of 1143403320 is 233043411.

It is an interprime number because it is at equal distance from previous prime (1143403279) and next prime (1143403361).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159820 + ... + 166820.

Almost surely, 2^1143403320 is an apocalyptic number.

1143403320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143403320 is an abundant number, since it is smaller than the sum of its proper divisors (2289817320).

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

1143403320 is a wasteful number, since it uses less digits than its factorization.

1143403320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8376 (or 8372 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1143403320 is about 33814.2472931160. The cubic root of 1143403320 is about 1045.6824430525.

Adding to 1143403320 its reverse (233043411), we get a palindrome (1376446731).

The spelling of 1143403320 in words is "one billion, one hundred forty-three million, four hundred three thousand, three hundred twenty".