102611 has 2 divisors, whose sum is σ = 102612. Its totient is φ = 102610.

The previous prime is 102607. The next prime is 102643. The reversal of 102611 is 116201.

It is a weak prime.

It is an emirp because it is prime and its reverse (116201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102611 - 2² = 102607 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 102592 and 102601.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102611.

It is not a weakly prime, because it can be changed into another prime (102811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51305 + 51306.

It is an arithmetic number, because the mean of its divisors is an integer number (51306).

2¹⁰²⁶¹¹ is an apocalyptic number.

102611 is a deficient number, since it is larger than the sum of its proper divisors (1).

102611 is an equidigital number, since it uses as much as digits as its factorization.

102611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 102611 is about 320.3295178406. The cubic root of 102611 is about 46.8163955022.

Adding to 102611 its reverse (116201), we get a palindrome (218812).

The spelling of 102611 in words is "one hundred two thousand, six hundred eleven".