920042099 has 2 divisors, whose sum is σ = 920042100. Its totient is φ = 920042098.

The previous prime is 920042089. The next prime is 920042107. The reversal of 920042099 is 990240029.

It is a strong prime.

It is an emirp because it is prime and its reverse (990240029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920042099 - 2⁴ = 920042083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (920042089) 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, 460021049 + 460021050.

It is an arithmetic number, because the mean of its divisors is an integer number (460021050).

Almost surely, 2^920042099 is an apocalyptic number.

920042099 is a deficient number, since it is larger than the sum of its proper divisors (1).

920042099 is an equidigital number, since it uses as much as digits as its factorization.

920042099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 920042099 is about 30332.1957497310. The cubic root of 920042099 is about 972.6036611437.

The spelling of 920042099 in words is "nine hundred twenty million, forty-two thousand, ninety-nine".