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112323131 = 176607243
BaseRepresentation
bin1101011000111…
…10101000111011
321211100121100222
412230132220323
5212223320011
615051250255
72532505454
oct654365073
9254317328
10112323131
1158449038
123174998b
131a3698bb
1410cbc12b
159cdaddb
hex6b1ea3b

112323131 has 4 divisors (see below), whose sum is σ = 118930392. Its totient is φ = 105715872.

The previous prime is 112323109. The next prime is 112323139. The reversal of 112323131 is 131323211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131323211 = 299943789.

It is a cyclic number.

It is not a de Polignac number, because 112323131 - 222 = 108128827 is a prime.

It is a super-2 number, since 2×1123231312 = 25232971515286322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6607243 = 112323131 / (1 + 1 + 2 + 3 + 2 + 3 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112323139) 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, 3303605 + ... + 3303638.

It is an arithmetic number, because the mean of its divisors is an integer number (29732598).

Almost surely, 2112323131 is an apocalyptic number.

112323131 is a deficient number, since it is larger than the sum of its proper divisors (6607261).

112323131 is an equidigital number, since it uses as much as digits as its factorization.

112323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607260.

The product of its digits is 108, while the sum is 17.

The square root of 112323131 is about 10598.2607535388. The cubic root of 112323131 is about 482.4915742128.

Adding to 112323131 its reverse (131323211), we get a palindrome (243646342).

The spelling of 112323131 in words is "one hundred twelve million, three hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 17 6607243 112323131