109934985191 has 2 divisors, whose sum is σ = 109934985192. Its totient is φ = 109934985190.

The previous prime is 109934985143. The next prime is 109934985197. The reversal of 109934985191 is 191589439901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109934985191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109934985191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109934985197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54967492595 + 54967492596.

It is an arithmetic number, because the mean of its divisors is an integer number (54967492596).

Almost surely, 2^109934985191 is an apocalyptic number.

109934985191 is a deficient number, since it is larger than the sum of its proper divisors (1).

109934985191 is an equidigital number, since it uses as much as digits as its factorization.

109934985191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3149280, while the sum is 59.

The spelling of 109934985191 in words is "one hundred nine billion, nine hundred thirty-four million, nine hundred eighty-five thousand, one hundred ninety-one".