101055555091 has 2 divisors, whose sum is σ = 101055555092. Its totient is φ = 101055555090.

The previous prime is 101055555053. The next prime is 101055555143. The reversal of 101055555091 is 190555550101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101055555091 - 2¹¹ = 101055553043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101055555091.

It is not a weakly prime, because it can be changed into another prime (101055555001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50527777545 + 50527777546.

It is an arithmetic number, because the mean of its divisors is an integer number (50527777546).

Almost surely, 2^101055555091 is an apocalyptic number.

101055555091 is a deficient number, since it is larger than the sum of its proper divisors (1).

101055555091 is an equidigital number, since it uses as much as digits as its factorization.

101055555091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 37.

The spelling of 101055555091 in words is "one hundred one billion, fifty-five million, five hundred fifty-five thousand, ninety-one".