21301211311001 has 4 divisors (see below), whose sum is σ = 21390337718400. Its totient is φ = 21212084903604.

The previous prime is 21301211310989. The next prime is 21301211311021. The reversal of 21301211311001 is 10011311210312.

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 21301211311001 - 2⁶ = 21301211310937 is a prime.

It is a super-2 number, since 2×21301211311001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21301211311021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44563203341 + ... + 44563203818.

It is an arithmetic number, because the mean of its divisors is an integer number (5347584429600).

Almost surely, 2^{21301211311001} is an apocalyptic number.

It is an amenable number.

21301211311001 is a deficient number, since it is larger than the sum of its proper divisors (89126407399).

21301211311001 is an equidigital number, since it uses as much as digits as its factorization.

21301211311001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89126407398.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 21301211311001 its reverse (10011311210312), we get a palindrome (31312522521313).

The spelling of 21301211311001 in words is "twenty-one trillion, three hundred one billion, two hundred eleven million, three hundred eleven thousand, one".