111000010109971 has 2 divisors, whose sum is σ = 111000010109972. Its totient is φ = 111000010109970.

The previous prime is 111000010109941. The next prime is 111000010110091. The reversal of 111000010109971 is 179901010000111.

It is a weak prime.

It is an emirp because it is prime and its reverse (179901010000111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111000010109971 - 2⁵ = 111000010109939 is a prime.

It is not a weakly prime, because it can be changed into another prime (111000010109941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500005054985 + 55500005054986.

It is an arithmetic number, because the mean of its divisors is an integer number (55500005054986).

Almost surely, 2^{111000010109971} is an apocalyptic number.

111000010109971 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000010109971 is an equidigital number, since it uses as much as digits as its factorization.

111000010109971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 31.

The spelling of 111000010109971 in words is "one hundred eleven trillion, ten million, one hundred nine thousand, nine hundred seventy-one".