2111012117 has 2 divisors, whose sum is σ = 2111012118. Its totient is φ = 2111012116.

The previous prime is 2111012107. The next prime is 2111012129. The reversal of 2111012117 is 7112101112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308196561 + 802815556 = 36169^2 + 28334^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111012117 - 2¹² = 2111008021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111012095 and 2111012104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111012107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055506058 + 1055506059.

It is an arithmetic number, because the mean of its divisors is an integer number (1055506059).

Almost surely, 2^2111012117 is an apocalyptic number.

It is an amenable number.

2111012117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111012117 is an equidigital number, since it uses as much as digits as its factorization.

2111012117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 17.

The square root of 2111012117 is about 45945.7518928573. The cubic root of 2111012117 is about 1282.8136585886.

Adding to 2111012117 its reverse (7112101112), we get a palindrome (9223113229).

The spelling of 2111012117 in words is "two billion, one hundred eleven million, twelve thousand, one hundred seventeen".