21110304001 has 4 divisors (see below), whose sum is σ = 21178183104. Its totient is φ = 21042424900.

The previous prime is 21110303971. The next prime is 21110304043. The reversal of 21110304001 is 10040301112.

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 21110304001 - 2¹³ = 21110295809 is a prime.

It is a super-3 number, since 3×21110304001³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110304101) 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, 33939085 + ... + 33939706.

It is an arithmetic number, because the mean of its divisors is an integer number (5294545776).

Almost surely, 2^21110304001 is an apocalyptic number.

It is an amenable number.

21110304001 is a deficient number, since it is larger than the sum of its proper divisors (67879103).

21110304001 is an equidigital number, since it uses as much as digits as its factorization.

21110304001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67879102.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21110304001 its reverse (10040301112), we get a palindrome (31150605113).

The spelling of 21110304001 in words is "twenty-one billion, one hundred ten million, three hundred four thousand, one".