21312302001001 has 12 divisors (see below), whose sum is σ = 23438466335536. Its totient is φ = 19364442280920.

The previous prime is 21312302000963. The next prime is 21312302001079. The reversal of 21312302001001 is 10010020321312.

It is not a de Polignac number, because 21312302001001 - 2¹³ = 21312301992809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21312302001701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46944615 + ... + 47396428.

Almost surely, 2^{21312302001001} is an apocalyptic number.

It is an amenable number.

21312302001001 is a deficient number, since it is larger than the sum of its proper divisors (2126164334535).

21312302001001 is a wasteful number, since it uses less digits than its factorization.

21312302001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94342932 (or 94342921 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21312302001001 its reverse (10010020321312), we get a palindrome (31322322322313).

The spelling of 21312302001001 in words is "twenty-one trillion, three hundred twelve billion, three hundred two million, one thousand, one".