21133132020001 has 2 divisors, whose sum is σ = 21133132020002. Its totient is φ = 21133132020000.

The previous prime is 21133132019941. The next prime is 21133132020019. The reversal of 21133132020001 is 10002023133112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21121368448401 + 11763571600 = 4595799^2 + 108460^2 .

It is a cyclic number.

It is not a de Polignac number, because 21133132020001 - 2³⁷ = 20995693066529 is a prime.

It is not a weakly prime, because it can be changed into another prime (21133132029001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566566010000 + 10566566010001.

It is an arithmetic number, because the mean of its divisors is an integer number (10566566010001).

Almost surely, 2^{21133132020001} is an apocalyptic number.

It is an amenable number.

21133132020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133132020001 is an equidigital number, since it uses as much as digits as its factorization.

21133132020001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21133132020001 its reverse (10002023133112), we get a palindrome (31135155153113).

It can be divided in two parts, 2113313 and 2020001, that added together give a palindrome (4133314).

The spelling of 21133132020001 in words is "twenty-one trillion, one hundred thirty-three billion, one hundred thirty-two million, twenty thousand, one".