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112111019987 is a prime number
BaseRepresentation
bin110100001101001010…
…1100110011111010011
3101201101012122220101112
41220122111212133103
53314100410114422
6123300400123535
711046133642451
oct1503225463723
9351335586345
10112111019987
114360082572a
12198899065ab
13a758975965
1455d76db9d1
152db25d9ee2
hex1a1a5667d3

112111019987 has 2 divisors, whose sum is σ = 112111019988. Its totient is φ = 112111019986.

The previous prime is 112111019971. The next prime is 112111020029. The reversal of 112111019987 is 789910111211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112111019987 - 24 = 112111019971 is a prime.

It is not a weakly prime, because it can be changed into another prime (112111019927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56055509993 + 56055509994.

It is an arithmetic number, because the mean of its divisors is an integer number (56055509994).

Almost surely, 2112111019987 is an apocalyptic number.

112111019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

112111019987 is an equidigital number, since it uses as much as digits as its factorization.

112111019987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 41.

The spelling of 112111019987 in words is "one hundred twelve billion, one hundred eleven million, nineteen thousand, nine hundred eighty-seven".