143311020 has 96 divisors (see below), whose sum is σ = 429105600. Its totient is φ = 35610624.

The previous prime is 143311009. The next prime is 143311043. The reversal of 143311020 is 20113341.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110536 + ... + 111824.

It is an arithmetic number, because the mean of its divisors is an integer number (4469850).

Almost surely, 2^143311020 is an apocalyptic number.

143311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214552800).

143311020 is an abundant number, since it is smaller than the sum of its proper divisors (285794580).

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

143311020 is a wasteful number, since it uses less digits than its factorization.

143311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 143311020 is about 11971.2580792496. The cubic root of 143311020 is about 523.3109983661.

Adding to 143311020 its reverse (20113341), we get a palindrome (163424361).

It can be divided in two parts, 14331 and 1020, that added together give a palindrome (15351).

The spelling of 143311020 in words is "one hundred forty-three million, three hundred eleven thousand, twenty".