120011020081 has 2 divisors, whose sum is σ = 120011020082. Its totient is φ = 120011020080.

The previous prime is 120011019983. The next prime is 120011020109. The reversal of 120011020081 is 180020110021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118446105600 + 1564914481 = 344160^2 + 39559^2 .

It is a cyclic number.

It is not a de Polignac number, because 120011020081 - 2²⁵ = 119977465649 is a prime.

It is a super-3 number, since 3×120011020081³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (120011020681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60005510040 + 60005510041.

It is an arithmetic number, because the mean of its divisors is an integer number (60005510041).

Almost surely, 2^120011020081 is an apocalyptic number.

It is an amenable number.

120011020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

120011020081 is an equidigital number, since it uses as much as digits as its factorization.

120011020081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

The spelling of 120011020081 in words is "one hundred twenty billion, eleven million, twenty thousand, eighty-one".