111111100110973 has 2 divisors, whose sum is σ = 111111100110974. Its totient is φ = 111111100110972.

The previous prime is 111111100110953. The next prime is 111111100111051. The reversal of 111111100110973 is 379011001111111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98190619537924 + 12920480573049 = 9909118^2 + 3594507^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111100110973 - 2²¹ = 111111098013821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111111100110943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555550055486 + 55555550055487.

It is an arithmetic number, because the mean of its divisors is an integer number (55555550055487).

Almost surely, 2^{111111100110973} is an apocalyptic number.

It is an amenable number.

111111100110973 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111100110973 is an equidigital number, since it uses as much as digits as its factorization.

111111100110973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 28.

The spelling of 111111100110973 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred million, one hundred ten thousand, nine hundred seventy-three".