10101110111091 has 6 divisors (see below), whose sum is σ = 14590492382700. Its totient is φ = 6734073407388.

The previous prime is 10101110111039. The next prime is 10101110111101. The reversal of 10101110111091 is 19011101110101.

It is not a de Polignac number, because 10101110111091 - 2¹¹ = 10101110109043 is a prime.

It is a super-2 number, since 2×10101110111091² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10101110115091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561172783941 + ... + 561172783958.

It is an arithmetic number, because the mean of its divisors is an integer number (2431748730450).

Almost surely, 2^{10101110111091} is an apocalyptic number.

10101110111091 is a deficient number, since it is larger than the sum of its proper divisors (4489382271609).

10101110111091 is a wasteful number, since it uses less digits than its factorization.

10101110111091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122345567905 (or 1122345567902 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

Adding to 10101110111091 its reverse (19011101110101), we get a palindrome (29112211221192).

The spelling of 10101110111091 in words is "ten trillion, one hundred one billion, one hundred ten million, one hundred eleven thousand, ninety-one".