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112111122131 is a prime number
BaseRepresentation
bin110100001101001010…
…1111111011011010011
3101201101012212002111122
41220122111333123103
53314100421402011
6123300402232455
711046134546321
oct1503225773323
9351335762448
10112111122131
1143600895448
121988995572b
13a7589b02b8
1455d7726d11
152db260a3db
hex1a1a57f6d3

112111122131 has 2 divisors, whose sum is σ = 112111122132. Its totient is φ = 112111122130.

The previous prime is 112111122091. The next prime is 112111122139. The reversal of 112111122131 is 131221111211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112111122131 is a prime.

It is a super-2 number, since 2×1121111221312 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112111122139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56055561065 + 56055561066.

It is an arithmetic number, because the mean of its divisors is an integer number (56055561066).

Almost surely, 2112111122131 is an apocalyptic number.

112111122131 is a deficient number, since it is larger than the sum of its proper divisors (1).

112111122131 is an equidigital number, since it uses as much as digits as its factorization.

112111122131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24, while the sum is 17.

Adding to 112111122131 its reverse (131221111211), we get a palindrome (243332233342).

The spelling of 112111122131 in words is "one hundred twelve billion, one hundred eleven million, one hundred twenty-two thousand, one hundred thirty-one".