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111101111123 is a prime number
BaseRepresentation
bin110011101111000100…
…1000110101101010011
3101121202211100012212112
41213132021012231103
53310013341023443
6123012242215535
711012121601652
oct1473611065523
9347684305775
10111101111123
1143132754202
12196476545ab
13a627679552
14553d531199
152d53aecb18
hex19de246b53

111101111123 has 2 divisors, whose sum is σ = 111101111124. Its totient is φ = 111101111122.

The previous prime is 111101111071. The next prime is 111101111137. The reversal of 111101111123 is 321111101111.

It is an a-pointer prime, because the next prime (111101111137) can be obtained adding 111101111123 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111101111123 - 28 = 111101110867 is a prime.

It is a super-2 number, since 2×1111011111232 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111101111098 and 111101111107.

It is not a weakly prime, because it can be changed into another prime (111101111183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550555561 + 55550555562.

It is an arithmetic number, because the mean of its divisors is an integer number (55550555562).

Almost surely, 2111101111123 is an apocalyptic number.

111101111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101111123 is an equidigital number, since it uses as much as digits as its factorization.

111101111123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 111101111123 its reverse (321111101111), we get a palindrome (432212212234).

The spelling of 111101111123 in words is "one hundred eleven billion, one hundred one million, one hundred eleven thousand, one hundred twenty-three".