2503123345 has 8 divisors (see below), whose sum is σ = 3005349480. Its totient is φ = 2001431040.

The previous prime is 2503123339. The next prime is 2503123361. The reversal of 2503123345 is 5433213052.

It can be written as a sum of positive squares in 4 ways, for example, as 8720209 + 2494403136 = 2953^2 + 49944^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2503123345 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123066 + ... + 141955.

It is an arithmetic number, because the mean of its divisors is an integer number (375668685).

Almost surely, 2^2503123345 is an apocalyptic number.

It is an amenable number.

2503123345 is a deficient number, since it is larger than the sum of its proper divisors (502226135).

2503123345 is a wasteful number, since it uses less digits than its factorization.

2503123345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266915.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2503123345 is about 50031.2237008051. The cubic root of 2503123345 is about 1357.7737772630.

Adding to 2503123345 its reverse (5433213052), we get a palindrome (7936336397).

The spelling of 2503123345 in words is "two billion, five hundred three million, one hundred twenty-three thousand, three hundred forty-five".