213404503201 has 4 divisors (see below), whose sum is σ = 213405585172. Its totient is φ = 213403421232.

The previous prime is 213404503187. The next prime is 213404503231. The reversal of 213404503201 is 102305404312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 199631133601 + 13773369600 = 446801^2 + 117360^2 .

It is a cyclic number.

It is not a de Polignac number, because 213404503201 - 2⁷ = 213404503073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213404503231) 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, 151806 + ... + 670711.

It is an arithmetic number, because the mean of its divisors is an integer number (53351396293).

Almost surely, 2^213404503201 is an apocalyptic number.

It is an amenable number.

213404503201 is a deficient number, since it is larger than the sum of its proper divisors (1081971).

213404503201 is an equidigital number, since it uses as much as digits as its factorization.

213404503201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081970.

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

Adding to 213404503201 its reverse (102305404312), we get a palindrome (315709907513).

The spelling of 213404503201 in words is "two hundred thirteen billion, four hundred four million, five hundred three thousand, two hundred one".