21103233301 has 4 divisors (see below), whose sum is σ = 21289987692. Its totient is φ = 20916478912.

The previous prime is 21103233247. The next prime is 21103233313. The reversal of 21103233301 is 10333230112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2681686225 + 18421547076 = 51785^2 + 135726^2 .

It is a cyclic number.

It is not a de Polignac number, because 21103233301 - 2⁹ = 21103232789 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 (21103233331) 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, 93377026 + ... + 93377251.

It is an arithmetic number, because the mean of its divisors is an integer number (5322496923).

Almost surely, 2^21103233301 is an apocalyptic number.

It is an amenable number.

21103233301 is a deficient number, since it is larger than the sum of its proper divisors (186754391).

21103233301 is a wasteful number, since it uses less digits than its factorization.

21103233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186754390.

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

Adding to 21103233301 its reverse (10333230112), we get a palindrome (31436463413).

The spelling of 21103233301 in words is "twenty-one billion, one hundred three million, two hundred thirty-three thousand, three hundred one".