21300032001 has 8 divisors (see below), whose sum is σ = 28438269120. Its totient is φ = 14180908112.

The previous prime is 21300031979. The next prime is 21300032093. The reversal of 21300032001 is 10023000312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21300032001 - 2⁷ = 21300031873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21300032801) 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, 4775706 + ... + 4780163.

It is an arithmetic number, because the mean of its divisors is an integer number (3554783640).

Almost surely, 2^21300032001 is an apocalyptic number.

It is an amenable number.

21300032001 is a deficient number, since it is larger than the sum of its proper divisors (7138237119).

21300032001 is an equidigital number, since it uses as much as digits as its factorization.

21300032001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9556615.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 21300032001 its reverse (10023000312), we get a palindrome (31323032313).

The spelling of 21300032001 in words is "twenty-one billion, three hundred million, thirty-two thousand, one".