21303201113 has 4 divisors (see below), whose sum is σ = 21304789968. Its totient is φ = 21301612260.

The previous prime is 21303201097. The next prime is 21303201121. The reversal of 21303201113 is 31110230312.

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 21303201113 - 2⁴ = 21303201097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21303201091 and 21303201100.

It is not an unprimeable number, because it can be changed into a prime (21303201133) 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, 774143 + ... + 801188.

It is an arithmetic number, because the mean of its divisors is an integer number (5326197492).

Almost surely, 2^21303201113 is an apocalyptic number.

It is an amenable number.

21303201113 is a deficient number, since it is larger than the sum of its proper divisors (1588855).

21303201113 is a wasteful number, since it uses less digits than its factorization.

21303201113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588854.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21303201113 its reverse (31110230312), we get a palindrome (52413431425).

The spelling of 21303201113 in words is "twenty-one billion, three hundred three million, two hundred one thousand, one hundred thirteen".