1260103123 has 4 divisors (see below), whose sum is σ = 1326424360. Its totient is φ = 1193781888.

The previous prime is 1260103079. The next prime is 1260103127. The reversal of 1260103123 is 3213010621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1260103123 - 2¹³ = 1260094931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 66321217 = 1260103123 / (1 + 2 + 6 + 0 + 1 + 0 + 3 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1260103123.

It is not an unprimeable number, because it can be changed into a prime (1260103127) 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 3 ways as a sum of consecutive naturals, for example, 33160590 + ... + 33160627.

It is an arithmetic number, because the mean of its divisors is an integer number (331606090).

Almost surely, 2^1260103123 is an apocalyptic number.

1260103123 is a deficient number, since it is larger than the sum of its proper divisors (66321237).

1260103123 is an equidigital number, since it uses as much as digits as its factorization.

1260103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66321236.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1260103123 is about 35497.9312495813. The cubic root of 1260103123 is about 1080.1117634109. Note that the first 3 decimals are identical.

Adding to 1260103123 its reverse (3213010621), we get a palindrome (4473113744).

The spelling of 1260103123 in words is "one billion, two hundred sixty million, one hundred three thousand, one hundred twenty-three".