Search a number
-
+
112212031 is a prime number
BaseRepresentation
bin1101011000000…
…11100000111111
321211010221222011
412230003200333
5212211241111
615045032051
72531533531
oct654034077
9254127864
10112212031
1158382618
12316b5627
131a32b169
1410c8d851
159cb8021
hex6b0383f

112212031 has 2 divisors, whose sum is σ = 112212032. Its totient is φ = 112212030.

The previous prime is 112212017. The next prime is 112212103. The reversal of 112212031 is 130212211.

Together with next prime (112212103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112212031 - 25 = 112211999 is a prime.

It is a super-2 number, since 2×1122120312 = 25183079802289922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112212131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56106015 + 56106016.

It is an arithmetic number, because the mean of its divisors is an integer number (56106016).

Almost surely, 2112212031 is an apocalyptic number.

112212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

112212031 is an equidigital number, since it uses as much as digits as its factorization.

112212031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 112212031 is about 10593.0180307597. The cubic root of 112212031 is about 482.3324425575.

Adding to 112212031 its reverse (130212211), we get a palindrome (242424242).

The spelling of 112212031 in words is "one hundred twelve million, two hundred twelve thousand, thirty-one".