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111222331223 is a prime number
BaseRepresentation
bin110011110010101011…
…1100001011101010111
3101122002021102211120212
41213211113201131113
53310240404044343
6123032252320035
711015123134223
oct1474527413527
9348067384525
10111222331223
1143195119703
121968017301b
13a64680c913
145551687783
152d5e594c18
hex19e55e1757

111222331223 has 2 divisors, whose sum is σ = 111222331224. Its totient is φ = 111222331222.

The previous prime is 111222331219. The next prime is 111222331273. The reversal of 111222331223 is 322133222111.

It is a weak prime.

It is an emirp because it is prime and its reverse (322133222111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111222331223 - 22 = 111222331219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111222331273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611165611 + 55611165612.

It is an arithmetic number, because the mean of its divisors is an integer number (55611165612).

Almost surely, 2111222331223 is an apocalyptic number.

111222331223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222331223 is an equidigital number, since it uses as much as digits as its factorization.

111222331223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

Adding to 111222331223 its reverse (322133222111), we get a palindrome (433355553334).

The spelling of 111222331223 in words is "one hundred eleven billion, two hundred twenty-two million, three hundred thirty-one thousand, two hundred twenty-three".