2143311404 has 18 divisors (see below), whose sum is σ = 4061512980. Its totient is φ = 989220336.

The previous prime is 2143311403. The next prime is 2143311409. The reversal of 2143311404 is 4041133412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143311404.

It is not an unprimeable number, because it can be changed into a prime (2143311403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1584614 + ... + 1585965.

It is an arithmetic number, because the mean of its divisors is an integer number (225639610).

Almost surely, 2^2143311404 is an apocalyptic number.

It is an amenable number.

2143311404 is a deficient number, since it is larger than the sum of its proper divisors (1918201576).

2143311404 is a wasteful number, since it uses less digits than its factorization.

2143311404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170609 (or 3170594 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2143311404 is about 46295.9113097474. The cubic root of 2143311404 is about 1289.3230837521.

Adding to 2143311404 its reverse (4041133412), we get a palindrome (6184444816).

The spelling of 2143311404 in words is "two billion, one hundred forty-three million, three hundred eleven thousand, four hundred four".