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112110121 = 176594713
BaseRepresentation
bin1101010111010…
…10101000101001
321210221210011201
412223222220221
5212200010441
615042524201
72530630444
oct653525051
9253853151
10112110121
1158312aa2
1231666661
131a2c3966
1410c6465b
159c97c31
hex6aeaa29

112110121 has 4 divisors (see below), whose sum is σ = 118704852. Its totient is φ = 105515392.

The previous prime is 112110107. The next prime is 112110137. The reversal of 112110121 is 121011211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121011211 = 235261357.

It can be written as a sum of positive squares in 2 ways, for example, as 58293225 + 53816896 = 7635^2 + 7336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112110121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112110098 and 112110107.

It is not an unprimeable number, because it can be changed into a prime (112110161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3297340 + ... + 3297373.

It is an arithmetic number, because the mean of its divisors is an integer number (29676213).

Almost surely, 2112110121 is an apocalyptic number.

It is an amenable number.

112110121 is a deficient number, since it is larger than the sum of its proper divisors (6594731).

112110121 is an equidigital number, since it uses as much as digits as its factorization.

112110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6594730.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 112110121 is about 10588.2066942424. The cubic root of 112110121 is about 482.1863816082.

Adding to 112110121 its reverse (121011211), we get a palindrome (233121332).

The spelling of 112110121 in words is "one hundred twelve million, one hundred ten thousand, one hundred twenty-one".

Divisors: 1 17 6594713 112110121