111000010120001 has 2 divisors, whose sum is σ = 111000010120002. Its totient is φ = 111000010120000.

The previous prime is 111000010119967. The next prime is 111000010120007. The reversal of 111000010120001 is 100021010000111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78480534437776 + 32519475682225 = 8858924^2 + 5702585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000010120001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111000010120007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500005060000 + 55500005060001.

It is an arithmetic number, because the mean of its divisors is an integer number (55500005060001).

Almost surely, 2^{111000010120001} is an apocalyptic number.

It is an amenable number.

111000010120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000010120001 is an equidigital number, since it uses as much as digits as its factorization.

111000010120001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111000010120001 its reverse (100021010000111), we get a palindrome (211021020120112).

The spelling of 111000010120001 in words is "one hundred eleven trillion, ten million, one hundred twenty thousand, one".