111051011060081 has 2 divisors, whose sum is σ = 111051011060082. Its totient is φ = 111051011060080.

The previous prime is 111051011060071. The next prime is 111051011060113. The reversal of 111051011060081 is 180060110150111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72176833533025 + 38874177527056 = 8495695^2 + 6234916^2 .

It is an emirp because it is prime and its reverse (180060110150111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111051011060081 is a prime.

It is a super-2 number, since 2×111051011060081² (a number of 29 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 111051011060081.

It is not a weakly prime, because it can be changed into another prime (111051011060071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55525505530040 + 55525505530041.

It is an arithmetic number, because the mean of its divisors is an integer number (55525505530041).

Almost surely, 2^{111051011060081} is an apocalyptic number.

It is an amenable number.

111051011060081 is a deficient number, since it is larger than the sum of its proper divisors (1).

111051011060081 is an equidigital number, since it uses as much as digits as its factorization.

111051011060081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 26.

The spelling of 111051011060081 in words is "one hundred eleven trillion, fifty-one billion, eleven million, sixty thousand, eighty-one".