3143971220 has 72 divisors (see below), whose sum is σ = 7171960320. Its totient is φ = 1157170560.

The previous prime is 3143971219. The next prime is 3143971241. The reversal of 3143971220 is 221793413.

3143971220 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 23 ways as a sum of consecutive naturals, for example, 1212125 + ... + 1214715.

It is an arithmetic number, because the mean of its divisors is an integer number (99610560).

Almost surely, 2^3143971220 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 3143971220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3585980160).

3143971220 is an abundant number, since it is smaller than the sum of its proper divisors (4027989100).

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

3143971220 is a wasteful number, since it uses less digits than its factorization.

3143971220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 3143971220 is about 56071.1264377665. The cubic root of 3143971220 is about 1464.9614188413.

The spelling of 3143971220 in words is "three billion, one hundred forty-three million, nine hundred seventy-one thousand, two hundred twenty".