3143243320 has 64 divisors (see below), whose sum is σ = 8096253120. Its totient is φ = 1075866624.

The previous prime is 3143243309. The next prime is 3143243353. The reversal of 3143243320 is 233423413.

3143243320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 162484 + ... + 180796.

It is an arithmetic number, because the mean of its divisors is an integer number (126503955).

Almost surely, 2^3143243320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143243320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4048126560).

3143243320 is an abundant number, since it is smaller than the sum of its proper divisors (4953009800).

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

3143243320 is a wasteful number, since it uses less digits than its factorization.

3143243320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18944 (or 18940 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 3143243320 is about 56064.6351990272. The cubic root of 3143243320 is about 1464.8483529503.

Adding to 3143243320 its reverse (233423413), we get a palindrome (3376666733).

The spelling of 3143243320 in words is "three billion, one hundred forty-three million, two hundred forty-three thousand, three hundred twenty".