111010111010971 has 2 divisors, whose sum is σ = 111010111010972. Its totient is φ = 111010111010970.

The previous prime is 111010111010933. The next prime is 111010111011061. The reversal of 111010111010971 is 179010111010111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111010111010971 - 2¹³ = 111010111002779 is a prime.

It is not a weakly prime, because it can be changed into another prime (111010111010171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505055505485 + 55505055505486.

It is an arithmetic number, because the mean of its divisors is an integer number (55505055505486).

Almost surely, 2^{111010111010971} is an apocalyptic number.

111010111010971 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010111010971 is an equidigital number, since it uses as much as digits as its factorization.

111010111010971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 25.

The spelling of 111010111010971 in words is "one hundred eleven trillion, ten billion, one hundred eleven million, ten thousand, nine hundred seventy-one".