21010120012307 has 2 divisors, whose sum is σ = 21010120012308. Its totient is φ = 21010120012306.

The previous prime is 21010120012157. The next prime is 21010120012363. The reversal of 21010120012307 is 70321002101012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010120012307 - 2¹⁴ = 21010119995923 is a prime.

It is not a weakly prime, because it can be changed into another prime (21010120012807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505060006153 + 10505060006154.

It is an arithmetic number, because the mean of its divisors is an integer number (10505060006154).

Almost surely, 2^{21010120012307} is an apocalyptic number.

21010120012307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010120012307 is an equidigital number, since it uses as much as digits as its factorization.

21010120012307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 21010120012307 its reverse (70321002101012), we get a palindrome (91331122113319).

The spelling of 21010120012307 in words is "twenty-one trillion, ten billion, one hundred twenty million, twelve thousand, three hundred seven".