21033100564413 has 32 divisors (see below), whose sum is σ = 32799972581376. Its totient is φ = 11737910657088.

The previous prime is 21033100564391. The next prime is 21033100564417. The reversal of 21033100564413 is 31446500133012.

It is not a de Polignac number, because 21033100564413 - 2⁹ = 21033100563901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033100564417) 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, 5634420 + ... + 8591442.

It is an arithmetic number, because the mean of its divisors is an integer number (1024999143168).

Almost surely, 2^{21033100564413} is an apocalyptic number.

It is an amenable number.

21033100564413 is a deficient number, since it is larger than the sum of its proper divisors (11766872016963).

21033100564413 is a wasteful number, since it uses less digits than its factorization.

21033100564413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964953.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 21033100564413 its reverse (31446500133012), we get a palindrome (52479600697425).

The spelling of 21033100564413 in words is "twenty-one trillion, thirty-three billion, one hundred million, five hundred sixty-four thousand, four hundred thirteen".