113106128091 has 16 divisors (see below), whose sum is σ = 168530640768. Its totient is φ = 66877236800.

The previous prime is 113106128059. The next prime is 113106128143. The reversal of 113106128091 is 190821601311.

It is not a de Polignac number, because 113106128091 - 2⁵ = 113106128059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (113106128021) 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, 41796921 + ... + 41799626.

It is an arithmetic number, because the mean of its divisors is an integer number (10533165048).

Almost surely, 2^113106128091 is an apocalyptic number.

113106128091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113106128091 is a deficient number, since it is larger than the sum of its proper divisors (55424512677).

113106128091 is a wasteful number, since it uses less digits than its factorization.

113106128091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83596602.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 113106128091 in words is "one hundred thirteen billion, one hundred six million, one hundred twenty-eight thousand, ninety-one".