10201101091 has 2 divisors, whose sum is σ = 10201101092. Its totient is φ = 10201101090.

The previous prime is 10201101077. The next prime is 10201101109. The reversal of 10201101091 is 19010110201.

Together with next prime (10201101109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10201101091 - 2⁹ = 10201100579 is a prime.

It is not a weakly prime, because it can be changed into another prime (10201101011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100550545 + 5100550546.

It is an arithmetic number, because the mean of its divisors is an integer number (5100550546).

Almost surely, 2^10201101091 is an apocalyptic number.

10201101091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201101091 is an equidigital number, since it uses as much as digits as its factorization.

10201101091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 10201101091 its reverse (19010110201), we get a palindrome (29211211292).

It can be divided in two parts, 1020110 and 1091, that added together give a palindrome (1021201).

The spelling of 10201101091 in words is "ten billion, two hundred one million, one hundred one thousand, ninety-one".