503040045133 has 4 divisors (see below), whose sum is σ = 503041606848. Its totient is φ = 503038483420.

The previous prime is 503040045121. The next prime is 503040045149. The reversal of 503040045133 is 331540040305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331540040305 = 5 ⋅66308008061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503040045133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503040045103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99541 + ... + 1007962.

It is an arithmetic number, because the mean of its divisors is an integer number (125760401712).

Almost surely, 2^503040045133 is an apocalyptic number.

It is an amenable number.

503040045133 is a deficient number, since it is larger than the sum of its proper divisors (1561715).

503040045133 is a wasteful number, since it uses less digits than its factorization.

503040045133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561714.

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

Adding to 503040045133 its reverse (331540040305), we get a palindrome (834580085438).

The spelling of 503040045133 in words is "five hundred three billion, forty million, forty-five thousand, one hundred thirty-three".