21001003200230 has 16 divisors (see below), whose sum is σ = 37910120396400. Its totient is φ = 8376331360992.

The previous prime is 21001003200179. The next prime is 21001003200239. The reversal of 21001003200230 is 3200230010012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001003200239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3008736224 + ... + 3008743203.

It is an arithmetic number, because the mean of its divisors is an integer number (2369382524775).

Almost surely, 2^{21001003200230} is an apocalyptic number.

21001003200230 is a deficient number, since it is larger than the sum of its proper divisors (16909117196170).

21001003200230 is a wasteful number, since it uses less digits than its factorization.

21001003200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017479783.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21001003200230 its reverse (3200230010012), we get a palindrome (24201233210242).

The spelling of 21001003200230 in words is "twenty-one trillion, one billion, three million, two hundred thousand, two hundred thirty".