1055442123 has 8 divisors (see below), whose sum is σ = 1563618000. Its totient is φ = 703628064.

The previous prime is 1055442121. The next prime is 1055442137. The reversal of 1055442123 is 3212445501.

1055442123 is a `hidden beast` number, since 105 + 544 + 2 + 12 + 3 = 666.

It is not a de Polignac number, because 1055442123 - 2¹ = 1055442121 is a prime.

It is a super-2 number, since 2×1055442123² = 2227916150005494258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 39090449 = 1055442123 / (1 + 0 + 5 + 5 + 4 + 4 + 2 + 1 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (1055442121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19545198 + ... + 19545251.

It is an arithmetic number, because the mean of its divisors is an integer number (195452250).

Almost surely, 2^1055442123 is an apocalyptic number.

1055442123 is a deficient number, since it is larger than the sum of its proper divisors (508175877).

1055442123 is an equidigital number, since it uses as much as digits as its factorization.

1055442123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39090458 (or 39090452 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1055442123 is about 32487.5687455987. The cubic root of 1055442123 is about 1018.1493171717.

Adding to 1055442123 its reverse (3212445501), we get a palindrome (4267887624).

The spelling of 1055442123 in words is "one billion, fifty-five million, four hundred forty-two thousand, one hundred twenty-three".