120121020011123 has 2 divisors, whose sum is σ = 120121020011124. Its totient is φ = 120121020011122.

The previous prime is 120121020011093. The next prime is 120121020011207. The reversal of 120121020011123 is 321110020121021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120121020011123 - 2²⁶ = 120120952902259 is a prime.

It is a super-2 number, since 2×120121020011123² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120121020011723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060510005561 + 60060510005562.

It is an arithmetic number, because the mean of its divisors is an integer number (60060510005562).

Almost surely, 2^{120121020011123} is an apocalyptic number.

120121020011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121020011123 is an equidigital number, since it uses as much as digits as its factorization.

120121020011123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120121020011123 its reverse (321110020121021), we get a palindrome (441231040132144).

The spelling of 120121020011123 in words is "one hundred twenty trillion, one hundred twenty-one billion, twenty million, eleven thousand, one hundred twenty-three".