21032030201 has 16 divisors (see below), whose sum is σ = 25892490624. Its totient is φ = 16636281984.

The previous prime is 21032030177. The next prime is 21032030237. The reversal of 21032030201 is 10203023012.

It is a happy number.

It is not a de Polignac number, because 21032030201 - 2³⁰ = 19958288377 is a prime.

It is a super-2 number, since 2×21032030201² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21032030281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335405 + ... + 393141.

It is an arithmetic number, because the mean of its divisors is an integer number (1618280664).

Almost surely, 2^21032030201 is an apocalyptic number.

It is an amenable number.

21032030201 is a deficient number, since it is larger than the sum of its proper divisors (4860460423).

21032030201 is a wasteful number, since it uses less digits than its factorization.

21032030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61760.

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

Adding to 21032030201 its reverse (10203023012), we get a palindrome (31235053213).

The spelling of 21032030201 in words is "twenty-one billion, thirty-two million, thirty thousand, two hundred one".