101120211091 has 16 divisors (see below), whose sum is σ = 108872838144. Its totient is φ = 93689697024.

The previous prime is 101120211079. The next prime is 101120211139. The reversal of 101120211091 is 190112021101.

It is not a de Polignac number, because 101120211091 - 2¹⁹ = 101119686803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101120211191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377325 + ... + 587038.

It is an arithmetic number, because the mean of its divisors is an integer number (6804552384).

Almost surely, 2^101120211091 is an apocalyptic number.

101120211091 is a deficient number, since it is larger than the sum of its proper divisors (7752627053).

101120211091 is an equidigital number, since it uses as much as digits as its factorization.

101120211091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964530.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 101120211091 its reverse (190112021101), we get a palindrome (291232232192).

The spelling of 101120211091 in words is "one hundred one billion, one hundred twenty million, two hundred eleven thousand, ninety-one".