2143120404 has 48 divisors (see below), whose sum is σ = 5234019840. Its totient is φ = 681220320.

The previous prime is 2143120379. The next prime is 2143120451. The reversal of 2143120404 is 4040213412.

It is a super-2 number, since 2×2143120404² = 9185930132082246432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79627 + ... + 103085.

It is an arithmetic number, because the mean of its divisors is an integer number (109042080).

Almost surely, 2^2143120404 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 2143120404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2617009920).

2143120404 is an abundant number, since it is smaller than the sum of its proper divisors (3090899436).

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

2143120404 is a wasteful number, since it uses less digits than its factorization.

2143120404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23820 (or 23818 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2143120404 is about 46293.8484466349. The cubic root of 2143120404 is about 1289.2847835120.

Adding to 2143120404 its reverse (4040213412), we get a palindrome (6183333816).

The spelling of 2143120404 in words is "two billion, one hundred forty-three million, one hundred twenty thousand, four hundred four".