1055730123 has 24 divisors (see below), whose sum is σ = 1802892000. Its totient is φ = 582470784.

The previous prime is 1055730119. The next prime is 1055730133. The reversal of 1055730123 is 3210375501.

It is not a de Polignac number, because 1055730123 - 2² = 1055730119 is a prime.

It is a super-2 number, since 2×1055730123² = 2229132185219190258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055730133) 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 23 ways as a sum of consecutive naturals, for example, 287098 + ... + 290751.

It is an arithmetic number, because the mean of its divisors is an integer number (75120500).

Almost surely, 2^1055730123 is an apocalyptic number.

1055730123 is a deficient number, since it is larger than the sum of its proper divisors (747161877).

1055730123 is a wasteful number, since it uses less digits than its factorization.

1055730123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577891 (or 577888 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 1055730123 is about 32492.0009079158. Note that the first 3 decimals coincide. The cubic root of 1055730123 is about 1018.2419167025.

The spelling of 1055730123 in words is "one billion, fifty-five million, seven hundred thirty thousand, one hundred twenty-three".