21302133301 has 4 divisors (see below), whose sum is σ = 21357752832. Its totient is φ = 21246513772.

The previous prime is 21302133299. The next prime is 21302133317. The reversal of 21302133301 is 10333120312.

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 a cyclic number.

It is not a de Polignac number, because 21302133301 - 2¹ = 21302133299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302133331) 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, 27809191 + ... + 27809956.

It is an arithmetic number, because the mean of its divisors is an integer number (5339438208).

Almost surely, 2^21302133301 is an apocalyptic number.

It is an amenable number.

21302133301 is a deficient number, since it is larger than the sum of its proper divisors (55619531).

21302133301 is an equidigital number, since it uses as much as digits as its factorization.

21302133301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55619530.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21302133301 its reverse (10333120312), we get a palindrome (31635253613).

The spelling of 21302133301 in words is "twenty-one billion, three hundred two million, one hundred thirty-three thousand, three hundred one".