21033003132001 has 32 divisors (see below), whose sum is σ = 26336557728000. Its totient is φ = 16378217060352.

The previous prime is 21033003131993. The next prime is 21033003132061. The reversal of 21033003132001 is 10023130033012.

It is not a de Polignac number, because 21033003132001 - 2³ = 21033003131993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21033003132001.

It is not an unprimeable number, because it can be changed into a prime (21033003132061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11794365 + ... + 13460053.

It is an arithmetic number, because the mean of its divisors is an integer number (823017429000).

Almost surely, 2^{21033003132001} is an apocalyptic number.

It is an amenable number.

21033003132001 is a deficient number, since it is larger than the sum of its proper divisors (5303554595999).

21033003132001 is a wasteful number, since it uses less digits than its factorization.

21033003132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669401.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21033003132001 its reverse (10023130033012), we get a palindrome (31056133165013).

The spelling of 21033003132001 in words is "twenty-one trillion, thirty-three billion, three million, one hundred thirty-two thousand, one".