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112111212213 = 337111317231032
BaseRepresentation
bin110100001101001011…
…0010101011010110101
3101201101020000200002000
41220122112111122311
53314100432242323
6123300404205513
711046135403050
oct1503226253265
9351336020060
10112111212213
11436009470a0
1219889999899
13a758a122c0
1455d774ba97
152db2626e43
hex1a1a5956b5

112111212213 has 384 divisors, whose sum is σ = 248802140160. Its totient is φ = 47927531520.

The previous prime is 112111212211. The next prime is 112111212229. The reversal of 112111212213 is 312212111211.

It is a happy number.

It is not a de Polignac number, because 112111212213 - 21 = 112111212211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111212211) 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 383 ways as a sum of consecutive naturals, for example, 1088458320 + ... + 1088458422.

It is an arithmetic number, because the mean of its divisors is an integer number (647922240).

Almost surely, 2112111212213 is an apocalyptic number.

112111212213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

112111212213 is an abundant number, since it is smaller than the sum of its proper divisors (136690927947).

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

112111212213 is a wasteful number, since it uses less digits than its factorization.

112111212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 177 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 112111212213 its reverse (312212111211), we get a palindrome (424323323424).

The spelling of 112111212213 in words is "one hundred twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred thirteen".