2105055123 has 8 divisors (see below), whose sum is σ = 2820988368. Its totient is φ = 1396245984.

The previous prime is 2105055089. The next prime is 2105055131. The reversal of 2105055123 is 3215505012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2105055123 - 2⁸ = 2105054867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105055093 and 2105055102.

It is not an unprimeable number, because it can be changed into a prime (2105055133) 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 in 7 ways as a sum of consecutive naturals, for example, 1780336 + ... + 1781517.

It is an arithmetic number, because the mean of its divisors is an integer number (352623546).

Almost surely, 2^2105055123 is an apocalyptic number.

2105055123 is a deficient number, since it is larger than the sum of its proper divisors (715933245).

2105055123 is a wasteful number, since it uses less digits than its factorization.

2105055123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562053.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2105055123 is about 45880.8797103979. The cubic root of 2105055123 is about 1281.6058789237.

The spelling of 2105055123 in words is "two billion, one hundred five million, fifty-five thousand, one hundred twenty-three".