120011120981 has 2 divisors, whose sum is σ = 120011120982. Its totient is φ = 120011120980.

The previous prime is 120011120959. The next prime is 120011121049. The reversal of 120011120981 is 189021110021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112889280100 + 7121840881 = 335990^2 + 84391^2 .

It is an emirp because it is prime and its reverse (189021110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120011120981 - 2³⁴ = 102831251797 is a prime.

It is a super-2 number, since 2×120011120981² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120011120981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120011120921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60005560490 + 60005560491.

It is an arithmetic number, because the mean of its divisors is an integer number (60005560491).

Almost surely, 2^120011120981 is an apocalyptic number.

It is an amenable number.

120011120981 is a deficient number, since it is larger than the sum of its proper divisors (1).

120011120981 is an equidigital number, since it uses as much as digits as its factorization.

120011120981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 120011120981 in words is "one hundred twenty billion, eleven million, one hundred twenty thousand, nine hundred eighty-one".