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113231231112 = 2337166450253
BaseRepresentation
bin110100101110100011…
…0110111100010001000
3101211021021112112011110
41221131012313202020
53323344143343422
6124003454130320
711115655404216
oct1513506674210
9354237475143
10113231231112
114402609494a
1219b40ab09a0
13a8a6a81b8c
1456a23bbcb6
152e2ab1460c
hex1a5d1b7888

113231231112 has 32 divisors (see below), whose sum is σ = 287065097280. Its totient is φ = 37212141120.

The previous prime is 113231231107. The next prime is 113231231137. The reversal of 113231231112 is 211132132311.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33223423 + ... + 33226830.

It is an arithmetic number, because the mean of its divisors is an integer number (8970784290).

Almost surely, 2113231231112 is an apocalyptic number.

113231231112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113231231112 is an abundant number, since it is smaller than the sum of its proper divisors (173833866168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113231231112 is a wasteful number, since it uses less digits than its factorization.

113231231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66450333 (or 66450329 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

Adding to 113231231112 its reverse (211132132311), we get a palindrome (324363363423).

The spelling of 113231231112 in words is "one hundred thirteen billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 71 142 213 284 426 568 852 1704 66450253 132900506 199350759 265801012 398701518 531602024 797403036 1594806072 4717967963 9435935926 14153903889 18871871852 28307807778 37743743704 56615615556 113231231112