213023004 has 24 divisors (see below), whose sum is σ = 504056448. Its totient is φ = 70007280.

The previous prime is 213022991. The next prime is 213023051. The reversal of 213023004 is 400320312.

213023004 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 7 ways as a sum of consecutive naturals, for example, 124162 + ... + 125865.

It is an arithmetic number, because the mean of its divisors is an integer number (21002352).

Almost surely, 2^213023004 is an apocalyptic number.

It is an amenable number.

213023004 is an abundant number, since it is smaller than the sum of its proper divisors (291033444).

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

213023004 is a wasteful number, since it uses less digits than its factorization.

213023004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250105 (or 250103 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 213023004 is about 14595.3076021028. The cubic root of 213023004 is about 597.2307607421.

Adding to 213023004 its reverse (400320312), we get a palindrome (613343316).

The spelling of 213023004 in words is "two hundred thirteen million, twenty-three thousand, four".