2001111017 has 2 divisors, whose sum is σ = 2001111018. Its totient is φ = 2001111016.

The previous prime is 2001110999. The next prime is 2001111023. The reversal of 2001111017 is 7101111002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1564677136 + 436433881 = 39556^2 + 20891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001111017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001110992 and 2001111010.

It is not a weakly prime, because it can be changed into another prime (2001111517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000555508 + 1000555509.

It is an arithmetic number, because the mean of its divisors is an integer number (1000555509).

Almost surely, 2^2001111017 is an apocalyptic number.

It is an amenable number.

2001111017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001111017 is an equidigital number, since it uses as much as digits as its factorization.

2001111017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 2001111017 is about 44733.7793730867. The cubic root of 2001111017 is about 1260.1543056592.

Adding to 2001111017 its reverse (7101111002), we get a palindrome (9102222019).

The spelling of 2001111017 in words is "two billion, one million, one hundred eleven thousand, seventeen".