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111060111161 = 31101195118181
BaseRepresentation
bin110011101101110110…
…0101100111100111001
3101121122222012012111102
41213123230230330321
53304422342024121
6123004215341145
711011113240356
oct1473354547471
9347588165442
10111060111161
11431115a033a
12196359817b5
13a61c02280c
145537cdb62d
152d501ee90b
hex19dbb2cf39

111060111161 has 16 divisors (see below), whose sum is σ = 115843485696. Its totient is φ = 106353000000.

The previous prime is 111060111143. The next prime is 111060111163. The reversal of 111060111161 is 161111060111.

It is not a de Polignac number, because 111060111161 - 222 = 111055916857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111060111163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6099491 + ... + 6117671.

It is an arithmetic number, because the mean of its divisors is an integer number (7240217856).

Almost surely, 2111060111161 is an apocalyptic number.

It is an amenable number.

111060111161 is a deficient number, since it is larger than the sum of its proper divisors (4783374535).

111060111161 is a wasteful number, since it uses less digits than its factorization.

111060111161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20264.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 111060111161 its reverse (161111060111), we get a palindrome (272171171272).

The spelling of 111060111161 in words is "one hundred eleven billion, sixty million, one hundred eleven thousand, one hundred sixty-one".

Divisors: 1 31 101 1951 3131 18181 60481 197051 563611 1836281 6108581 35471131 56924711 1099605061 3582584231 111060111161