83842123 has 2 divisors, whose sum is σ = 83842124. Its totient is φ = 83842122.

The previous prime is 83842093. The next prime is 83842141. The reversal of 83842123 is 32124838.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83842123 is a prime.

It is equal to p_4880380 and since 83842123 and 4880380 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (83842163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41921061 + 41921062.

It is an arithmetic number, because the mean of its divisors is an integer number (41921062).

Almost surely, 2^83842123 is an apocalyptic number.

83842123 is a deficient number, since it is larger than the sum of its proper divisors (1).

83842123 is an equidigital number, since it uses as much as digits as its factorization.

83842123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 83842123 is about 9156.5344426808. The cubic root of 83842123 is about 437.6773667779.

The spelling of 83842123 in words is "eighty-three million, eight hundred forty-two thousand, one hundred twenty-three".