2881123123 has 2 divisors, whose sum is σ = 2881123124. Its totient is φ = 2881123122.

The previous prime is 2881123099. The next prime is 2881123151. The reversal of 2881123123 is 3213211882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2881123123 - 2²¹ = 2879025971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2881123163) 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, 1440561561 + 1440561562.

It is an arithmetic number, because the mean of its divisors is an integer number (1440561562).

Almost surely, 2^2881123123 is an apocalyptic number.

2881123123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2881123123 is an equidigital number, since it uses as much as digits as its factorization.

2881123123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 2881123123 is about 53676.0945207455. The cubic root of 2881123123 is about 1422.9422435321.

The spelling of 2881123123 in words is "two billion, eight hundred eighty-one million, one hundred twenty-three thousand, one hundred twenty-three".