21403230201 has 6 divisors (see below), whose sum is σ = 30915776970. Its totient is φ = 14268820128.

The previous prime is 21403230193. The next prime is 21403230203. The reversal of 21403230201 is 10203230412.

21403230201 is a `hidden beast` number, since 2 + 140 + 323 + 0 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20214014976 + 1189215225 = 142176^2 + 34485^2 .

It is not a de Polignac number, because 21403230201 - 2³ = 21403230193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21403230203) 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, 1189068336 + ... + 1189068353.

It is an arithmetic number, because the mean of its divisors is an integer number (5152629495).

Almost surely, 2^21403230201 is an apocalyptic number.

It is an amenable number.

21403230201 is a deficient number, since it is larger than the sum of its proper divisors (9512546769).

21403230201 is a wasteful number, since it uses less digits than its factorization.

21403230201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378136695 (or 2378136692 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21403230201 its reverse (10203230412), we get a palindrome (31606460613).

The spelling of 21403230201 in words is "twenty-one billion, four hundred three million, two hundred thirty thousand, two hundred one".