1110112010981 has 2 divisors, whose sum is σ = 1110112010982. Its totient is φ = 1110112010980.

The previous prime is 1110112010971. The next prime is 1110112011013. The reversal of 1110112010981 is 1890102110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804707673025 + 305404337956 = 897055^2 + 552634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110112010981 is a prime.

It is a super-2 number, since 2×1110112010981² (a number of 25 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 1110112010981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110112010921) 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, 555056005490 + 555056005491.

It is an arithmetic number, because the mean of its divisors is an integer number (555056005491).

Almost surely, 2^{1110112010981} is an apocalyptic number.

It is an amenable number.

1110112010981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110112010981 is an equidigital number, since it uses as much as digits as its factorization.

1110112010981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 26.

The spelling of 1110112010981 in words is "one trillion, one hundred ten billion, one hundred twelve million, ten thousand, nine hundred eighty-one".