61051101011 has 2 divisors, whose sum is σ = 61051101012. Its totient is φ = 61051101010.

The previous prime is 61051100989. The next prime is 61051101019. The reversal of 61051101011 is 11010115016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61051101011 is a prime.

It is not a weakly prime, because it can be changed into another prime (61051101019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30525550505 + 30525550506.

It is an arithmetic number, because the mean of its divisors is an integer number (30525550506).

Almost surely, 2^61051101011 is an apocalyptic number.

61051101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

61051101011 is an equidigital number, since it uses as much as digits as its factorization.

61051101011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 17.

Adding to 61051101011 its reverse (11010115016), we get a palindrome (72061216027).

The spelling of 61051101011 in words is "sixty-one billion, fifty-one million, one hundred one thousand, eleven".