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BaseRepresentation
bin11011001100111111
312122211210
4123030333
512031143
62215503
7642564
oct331477
9178753
10111423
1176794
1254593
133b940
142c86b
1523033
hex1b33f

111423 has 8 divisors (see below), whose sum is σ = 160048. Its totient is φ = 68544.

The previous prime is 111409. The next prime is 111427. The reversal of 111423 is 324111.

Adding to 111423 its reverse (324111), we get a palindrome (435534).

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111423 - 213 = 103231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111399 and 111408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390 + ... + 1467.

It is an arithmetic number, because the mean of its divisors is an integer number (20006).

2111423 is an apocalyptic number.

111423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111423 is a deficient number, since it is larger than the sum of its proper divisors (48625).

111423 is a wasteful number, since it uses less digits than its factorization.

111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873.

The product of its digits is 24, while the sum is 12.

The square root of 111423 is about 333.8008388246. The cubic root of 111423 is about 48.1199258157.

The spelling of 111423 in words is "one hundred eleven thousand, four hundred twenty-three", and thus it is an iban number.

Divisors: 1 3 13 39 2857 8571 37141 111423