21036204301 has 4 divisors (see below), whose sum is σ = 24041376352. Its totient is φ = 18031032252.

The previous prime is 21036204289. The next prime is 21036204313. The reversal of 21036204301 is 10340263012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (21036204289) and next prime (21036204313).

It is a cyclic number.

It is not a de Polignac number, because 21036204301 - 2⁵ = 21036204269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21036204001) 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, 1502586015 + ... + 1502586028.

It is an arithmetic number, because the mean of its divisors is an integer number (6010344088).

Almost surely, 2^21036204301 is an apocalyptic number.

It is an amenable number.

21036204301 is a deficient number, since it is larger than the sum of its proper divisors (3005172051).

21036204301 is an equidigital number, since it uses as much as digits as its factorization.

21036204301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005172050.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21036204301 its reverse (10340263012), we get a palindrome (31376467313).

The spelling of 21036204301 in words is "twenty-one billion, thirty-six million, two hundred four thousand, three hundred one".