61111065011 has 2 divisors, whose sum is σ = 61111065012. Its totient is φ = 61111065010.

The previous prime is 61111064983. The next prime is 61111065019. The reversal of 61111065011 is 11056011116.

It is a happy number.

61111065011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61111065011 - 2¹⁰ = 61111063987 is a prime.

It is not a weakly prime, because it can be changed into another prime (61111065019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555532505 + 30555532506.

It is an arithmetic number, because the mean of its divisors is an integer number (30555532506).

Almost surely, 2^61111065011 is an apocalyptic number.

61111065011 is a deficient number, since it is larger than the sum of its proper divisors (1).

61111065011 is an equidigital number, since it uses as much as digits as its factorization.

61111065011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 61111065011 its reverse (11056011116), we get a palindrome (72167076127).

The spelling of 61111065011 in words is "sixty-one billion, one hundred eleven million, sixty-five thousand, eleven".