1145003123 has 16 divisors (see below), whose sum is σ = 1280891232. Its totient is φ = 1014720000.

The previous prime is 1145003081. The next prime is 1145003129. The reversal of 1145003123 is 3213005411.

It is a cyclic number.

It is not a de Polignac number, because 1145003123 - 2⁶ = 1145003059 is a prime.

It is a super-2 number, since 2×1145003123² = 2622064303359506258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145003095 and 1145003104.

It is not an unprimeable number, because it can be changed into a prime (1145003129) 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 15 ways as a sum of consecutive naturals, for example, 68273 + ... + 83373.

It is an arithmetic number, because the mean of its divisors is an integer number (80055702).

Almost surely, 2^1145003123 is an apocalyptic number.

1145003123 is a deficient number, since it is larger than the sum of its proper divisors (135888109).

1145003123 is a wasteful number, since it uses less digits than its factorization.

1145003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15286.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1145003123 is about 33837.8947778966. The cubic root of 1145003123 is about 1046.1699077628.

Adding to 1145003123 its reverse (3213005411), we get a palindrome (4358008534).

The spelling of 1145003123 in words is "one billion, one hundred forty-five million, three thousand, one hundred twenty-three".