999112043 has 2 divisors, whose sum is σ = 999112044. Its totient is φ = 999112042.

The previous prime is 999112021. The next prime is 999112061. The reversal of 999112043 is 340211999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999112043 - 2¹⁴ = 999095659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999111988 and 999112006.

It is not a weakly prime, because it can be changed into another prime (999112343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499556021 + 499556022.

It is an arithmetic number, because the mean of its divisors is an integer number (499556022).

Almost surely, 2^999112043 is an apocalyptic number.

999112043 is a deficient number, since it is larger than the sum of its proper divisors (1).

999112043 is an equidigital number, since it uses as much as digits as its factorization.

999112043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 999112043 is about 31608.7336506858. The cubic root of 999112043 is about 999.7039266826.

The spelling of 999112043 in words is "nine hundred ninety-nine million, one hundred twelve thousand, forty-three".