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113311011213 = 344729763859
BaseRepresentation
bin110100110000111011…
…1001101000110001101
3101211110211122202220000
41221201313031012031
53324030104324323
6124015424114513
711120644463241
oct1514167150615
9354424582800
10113311011213
1144067125914
1219b63765a39
13a8ba46613a
1456acc28421
152e32b22e43
hex1a61dcd18d

113311011213 has 20 divisors (see below), whose sum is σ = 172868498880. Its totient is φ = 73933423272.

The previous prime is 113311011199. The next prime is 113311011223. The reversal of 113311011213 is 312110113311.

It is a de Polignac number, because none of the positive numbers 2k-113311011213 is a prime.

It is a super-2 number, since 2×1133110112132 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113311011223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14878123 + ... + 14885736.

It is an arithmetic number, because the mean of its divisors is an integer number (8643424944).

Almost surely, 2113311011213 is an apocalyptic number.

It is an amenable number.

113311011213 is a deficient number, since it is larger than the sum of its proper divisors (59557487667).

113311011213 is an equidigital number, since it uses as much as digits as its factorization.

113311011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29763918 (or 29763909 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 113311011213 its reverse (312110113311), we get a palindrome (425421124524).

The spelling of 113311011213 in words is "one hundred thirteen billion, three hundred eleven million, eleven thousand, two hundred thirteen".

Divisors: 1 3 9 27 47 81 141 423 1269 3807 29763859 89291577 267874731 803624193 1398901373 2410872579 4196704119 12590112357 37770337071 113311011213