611020117 has 2 divisors, whose sum is σ = 611020118. Its totient is φ = 611020116.

The previous prime is 611020099. The next prime is 611020121. The reversal of 611020117 is 711020116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605455236 + 5564881 = 24606^2 + 2359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611020117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 611020094 and 611020103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611020217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305510058 + 305510059.

It is an arithmetic number, because the mean of its divisors is an integer number (305510059).

Almost surely, 2^611020117 is an apocalyptic number.

It is an amenable number.

611020117 is a deficient number, since it is larger than the sum of its proper divisors (1).

611020117 is an equidigital number, since it uses as much as digits as its factorization.

611020117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 611020117 is about 24718.8211086209. The cubic root of 611020117 is about 848.5651071348.

Subtracting 611020117 from its reverse (711020116), we obtain a palindrome (99999999).

The spelling of 611020117 in words is "six hundred eleven million, twenty thousand, one hundred seventeen".