21300020401 has 8 divisors (see below), whose sum is σ = 23272643808. Its totient is φ = 19333440000.

The previous prime is 21300020387. The next prime is 21300020437. The reversal of 21300020401 is 10402000312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21300020401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21300620401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503375 + ... + 1517476.

It is an arithmetic number, because the mean of its divisors is an integer number (2909080476).

Almost surely, 2^21300020401 is an apocalyptic number.

It is an amenable number.

21300020401 is a deficient number, since it is larger than the sum of its proper divisors (1972623407).

21300020401 is a wasteful number, since it uses less digits than its factorization.

21300020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021503.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21300020401 its reverse (10402000312), we get a palindrome (31702020713).

The spelling of 21300020401 in words is "twenty-one billion, three hundred million, twenty thousand, four hundred one".