21010133120047 has 2 divisors, whose sum is σ = 21010133120048. Its totient is φ = 21010133120046.

The previous prime is 21010133120021. The next prime is 21010133120083. The reversal of 21010133120047 is 74002133101012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21010133120047 - 2⁷ = 21010133119919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010133120017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505066560023 + 10505066560024.

It is an arithmetic number, because the mean of its divisors is an integer number (10505066560024).

Almost surely, 2^{21010133120047} is an apocalyptic number.

21010133120047 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010133120047 is an equidigital number, since it uses as much as digits as its factorization.

21010133120047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 21010133120047 its reverse (74002133101012), we get a palindrome (95012266221059).

The spelling of 21010133120047 in words is "twenty-one trillion, ten billion, one hundred thirty-three million, one hundred twenty thousand, forty-seven".