61110220141 has 2 divisors, whose sum is σ = 61110220142. Its totient is φ = 61110220140.

The previous prime is 61110220123. The next prime is 61110220153. The reversal of 61110220141 is 14102201116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49697784900 + 11412435241 = 222930^2 + 106829^2 .

It is a cyclic number.

It is not a de Polignac number, because 61110220141 - 2¹¹ = 61110218093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61110220181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555110070 + 30555110071.

It is an arithmetic number, because the mean of its divisors is an integer number (30555110071).

Almost surely, 2^61110220141 is an apocalyptic number.

It is an amenable number.

61110220141 is a deficient number, since it is larger than the sum of its proper divisors (1).

61110220141 is an equidigital number, since it uses as much as digits as its factorization.

61110220141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 61110220141 its reverse (14102201116), we get a palindrome (75212421257).

The spelling of 61110220141 in words is "sixty-one billion, one hundred ten million, two hundred twenty thousand, one hundred forty-one".