2143213504 has 28 divisors (see below), whose sum is σ = 4258187064. Its totient is φ = 1070284544.

The previous prime is 2143213399. The next prime is 2143213507. The reversal of 2143213504 is 4053123412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143213507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32682 + ... + 73174.

Almost surely, 2^2143213504 is an apocalyptic number.

It is an amenable number.

2143213504 is a deficient number, since it is larger than the sum of its proper divisors (2114973560).

2143213504 is an equidigital number, since it uses as much as digits as its factorization.

2143213504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41332 (or 41322 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2143213504 is about 46294.8539688808. The cubic root of 2143213504 is about 1289.3034526568.

Adding to 2143213504 its reverse (4053123412), we get a palindrome (6196336916).

The spelling of 2143213504 in words is "two billion, one hundred forty-three million, two hundred thirteen thousand, five hundred four".