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112111001231 = 213752461863
BaseRepresentation
bin110100001101001010…
…1100001111010001111
3101201101012121221122212
41220122111201322033
53314100404014411
6123300355501035
711046133533665
oct1503225417217
9351335557585
10112111001231
1143600812629
12198898b777b
13a75896a268
1455d76d4c35
152db25d468b
hex1a1a561e8f

112111001231 has 4 divisors (see below), whose sum is σ = 112163465232. Its totient is φ = 112058537232.

The previous prime is 112111001227. The next prime is 112111001279. The reversal of 112111001231 is 132100111211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132100111211 = 233566953267.

It is a cyclic number.

It is not a de Polignac number, because 112111001231 - 22 = 112111001227 is a prime.

It is a super-2 number, since 2×1121110012312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111001201) 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 3 ways as a sum of consecutive naturals, for example, 26228795 + ... + 26233068.

It is an arithmetic number, because the mean of its divisors is an integer number (28040866308).

Almost surely, 2112111001231 is an apocalyptic number.

112111001231 is a deficient number, since it is larger than the sum of its proper divisors (52464001).

112111001231 is an equidigital number, since it uses as much as digits as its factorization.

112111001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52464000.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 112111001231 its reverse (132100111211), we get a palindrome (244211112442).

The spelling of 112111001231 in words is "one hundred twelve billion, one hundred eleven million, one thousand, two hundred thirty-one".

Divisors: 1 2137 52461863 112111001231