120013444340021 has 2 divisors, whose sum is σ = 120013444340022. Its totient is φ = 120013444340020.

The previous prime is 120013444339993. The next prime is 120013444340077. The reversal of 120013444340021 is 120043444310021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97787594115121 + 22225850224900 = 9888761^2 + 4714430^2 .

It is a cyclic number.

It is not a de Polignac number, because 120013444340021 - 2¹⁴ = 120013444323637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120013444340081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006722170010 + 60006722170011.

It is an arithmetic number, because the mean of its divisors is an integer number (60006722170011).

Almost surely, 2^{120013444340021} is an apocalyptic number.

It is an amenable number.

120013444340021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120013444340021 is an equidigital number, since it uses as much as digits as its factorization.

120013444340021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 120013444340021 its reverse (120043444310021), we get a palindrome (240056888650042).

The spelling of 120013444340021 in words is "one hundred twenty trillion, thirteen billion, four hundred forty-four million, three hundred forty thousand, twenty-one".