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110111210113231 = 641171780358991
BaseRepresentation
bin11001000010010101000011…
…100100001000100011001111
3112102212112021112222212202201
4121002111003210020203033
5103413030224242110411
61030104220330302331
732123162302056115
oct3102250344104317
9472775245885681
10110111210113231
11320a29a1574288
12104243595879a7
13495959a3c3aa2
141d295a7b27ab5
15cae3a2b923c1
hex6425439088cf

110111210113231 has 4 divisors (see below), whose sum is σ = 110282990472864. Its totient is φ = 109939429753600.

The previous prime is 110111210113207. The next prime is 110111210113291. The reversal of 110111210113231 is 132311012111011.

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

It is a cyclic number.

It is not a de Polignac number, because 110111210113231 - 29 = 110111210112719 is a prime.

It is a super-2 number, since 2×1101112101132312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110111210113199 and 110111210113208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111210113291) 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, 85890178855 + ... + 85890180136.

It is an arithmetic number, because the mean of its divisors is an integer number (27570747618216).

Almost surely, 2110111210113231 is an apocalyptic number.

110111210113231 is a deficient number, since it is larger than the sum of its proper divisors (171780359633).

110111210113231 is an equidigital number, since it uses as much as digits as its factorization.

110111210113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171780359632.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 110111210113231 its reverse (132311012111011), we get a palindrome (242422222224242).

The spelling of 110111210113231 in words is "one hundred ten trillion, one hundred eleven billion, two hundred ten million, one hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 641 171780358991 110111210113231