111055009973 has 2 divisors, whose sum is σ = 111055009974. Its totient is φ = 111055009972.

The previous prime is 111055009921. The next prime is 111055009979. The reversal of 111055009973 is 379900550111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92123176324 + 18931833649 = 303518^2 + 137593^2 .

It is a cyclic number.

It is not a de Polignac number, because 111055009973 - 2⁶ = 111055009909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111055009973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111055009979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55527504986 + 55527504987.

It is an arithmetic number, because the mean of its divisors is an integer number (55527504987).

Almost surely, 2^111055009973 is an apocalyptic number.

It is an amenable number.

111055009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

111055009973 is an equidigital number, since it uses as much as digits as its factorization.

111055009973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42525, while the sum is 41.

The spelling of 111055009973 in words is "one hundred eleven billion, fifty-five million, nine thousand, nine hundred seventy-three".