101061010591 has 2 divisors, whose sum is σ = 101061010592. Its totient is φ = 101061010590.

The previous prime is 101061010579. The next prime is 101061010657. The reversal of 101061010591 is 195010160101.

It is a weak prime.

It is an emirp because it is prime and its reverse (195010160101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101061010591 - 2³⁵ = 66701272223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101061010511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50530505295 + 50530505296.

It is an arithmetic number, because the mean of its divisors is an integer number (50530505296).

Almost surely, 2^101061010591 is an apocalyptic number.

101061010591 is a deficient number, since it is larger than the sum of its proper divisors (1).

101061010591 is an equidigital number, since it uses as much as digits as its factorization.

101061010591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 25.

Adding to 101061010591 its reverse (195010160101), we get a palindrome (296071170692).

It can be divided in two parts, 1010610 and 10591, that added together give a palindrome (1021201).

The spelling of 101061010591 in words is "one hundred one billion, sixty-one million, ten thousand, five hundred ninety-one".