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111100230131 = 1118211554611
BaseRepresentation
bin110011101111000010…
…1101111100111110011
3101121202202200110101012
41213132011233213303
53310013124331011
6123012211301135
711012111242322
oct1473605574763
9347682613335
10111100230131
1143132202310
12196472aa7ab
13a62742b557
14553d3820b9
152d539c6a8b
hex19de16f9f3

111100230131 has 8 divisors (see below), whose sum is σ = 121207124928. Its totient is φ = 100994481000.

The previous prime is 111100230119. The next prime is 111100230167. The reversal of 111100230131 is 131032001111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111100230131 is a prime.

It is a super-2 number, since 2×1111002301312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100233131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76985 + ... + 477626.

It is an arithmetic number, because the mean of its divisors is an integer number (15150890616).

Almost surely, 2111100230131 is an apocalyptic number.

111100230131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111100230131 is a deficient number, since it is larger than the sum of its proper divisors (10106894797).

111100230131 is a wasteful number, since it uses less digits than its factorization.

111100230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572833.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 111100230131 its reverse (131032001111), we get a palindrome (242132231242).

The spelling of 111100230131 in words is "one hundred eleven billion, one hundred million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 11 18211 200321 554611 6100721 10100020921 111100230131