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112111232213 = 181619399073
BaseRepresentation
bin110100001101001011…
…0011010010011010101
3101201101020001200111202
41220122112122103111
53314100433412323
6123300404442245
711046135515261
oct1503226322325
9351336050452
10112111232213
1143600960122
12198899a9385
13a758a1b436
1455d77550a1
152db262cd28
hex1a1a59a4d5

112111232213 has 4 divisors (see below), whose sum is σ = 112730631468. Its totient is φ = 111491832960.

The previous prime is 112111232161. The next prime is 112111232227. The reversal of 112111232213 is 312232111211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40103266564 + 72007965649 = 200258^2 + 268343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112111232213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111232293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309699356 + ... + 309699717.

It is an arithmetic number, because the mean of its divisors is an integer number (28182657867).

Almost surely, 2112111232213 is an apocalyptic number.

It is an amenable number.

112111232213 is a deficient number, since it is larger than the sum of its proper divisors (619399255).

112111232213 is an equidigital number, since it uses as much as digits as its factorization.

112111232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619399254.

The product of its digits is 144, while the sum is 20.

Adding to 112111232213 its reverse (312232111211), we get a palindrome (424343343424).

The spelling of 112111232213 in words is "one hundred twelve billion, one hundred eleven million, two hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 181 619399073 112111232213