21010332322133 has 16 divisors (see below), whose sum is σ = 26196358504320. Its totient is φ = 16370650982400.

The previous prime is 21010332322103. The next prime is 21010332322141. The reversal of 21010332322133 is 33122323301012.

It is a de Polignac number, because none of the positive numbers 2^k-21010332322133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010332322103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7412648 + ... + 9847233.

It is an arithmetic number, because the mean of its divisors is an integer number (1637272406520).

Almost surely, 2^{21010332322133} is an apocalyptic number.

It is an amenable number.

21010332322133 is a deficient number, since it is larger than the sum of its proper divisors (5186026182187).

21010332322133 is a wasteful number, since it uses less digits than its factorization.

21010332322133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17275708.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21010332322133 its reverse (33122323301012), we get a palindrome (54132655623145).

The spelling of 21010332322133 in words is "twenty-one trillion, ten billion, three hundred thirty-two million, three hundred twenty-two thousand, one hundred thirty-three".