111010110999973 has 2 divisors, whose sum is σ = 111010110999974. Its totient is φ = 111010110999972.

The previous prime is 111010110999971. The next prime is 111010111000049. The reversal of 111010110999973 is 379999011010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84728011667524 + 26282099332449 = 9204782^2 + 5126607^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010110999973 - 2¹ = 111010110999971 is a prime.

Together with 111010110999971, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111010110999973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010110999971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505055499986 + 55505055499987.

It is an arithmetic number, because the mean of its divisors is an integer number (55505055499987).

Almost surely, 2^{111010110999973} is an apocalyptic number.

It is an amenable number.

111010110999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010110999973 is an equidigital number, since it uses as much as digits as its factorization.

111010110999973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781, while the sum is 52.

The spelling of 111010110999973 in words is "one hundred eleven trillion, ten billion, one hundred ten million, nine hundred ninety-nine thousand, nine hundred seventy-three".