3443121020 has 24 divisors (see below), whose sum is σ = 7463799168. Its totient is φ = 1332820800.

The previous prime is 3443120987. The next prime is 3443121041. The reversal of 3443121020 is 201213443.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3443120983 and 3443121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2776091 + ... + 2777330.

It is an arithmetic number, because the mean of its divisors is an integer number (310991632).

Almost surely, 2^3443121020 is an apocalyptic number.

It is an amenable number.

3443121020 is an abundant number, since it is smaller than the sum of its proper divisors (4020678148).

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

3443121020 is a wasteful number, since it uses less digits than its factorization.

3443121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553461 (or 5553459 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3443121020 is about 58678.1136370282. The cubic root of 3443121020 is about 1510.0248552259.

Adding to 3443121020 its reverse (201213443), we get a palindrome (3644334463).

The spelling of 3443121020 in words is "three billion, four hundred forty-three million, one hundred twenty-one thousand, twenty".