111011020109903 has 2 divisors, whose sum is σ = 111011020109904. Its totient is φ = 111011020109902.

The previous prime is 111011020109849. The next prime is 111011020109929. The reversal of 111011020109903 is 309901020110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111011020109903 - 2¹⁸ = 111011019847759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011020109203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505510054951 + 55505510054952.

It is an arithmetic number, because the mean of its divisors is an integer number (55505510054952).

Almost surely, 2^{111011020109903} is an apocalyptic number.

111011020109903 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011020109903 is an equidigital number, since it uses as much as digits as its factorization.

111011020109903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 111011020109903 in words is "one hundred eleven trillion, eleven billion, twenty million, one hundred nine thousand, nine hundred three".