1320054503 has 4 divisors (see below), whose sum is σ = 1320190080. Its totient is φ = 1319918928.

The previous prime is 1320054499. The next prime is 1320054511. The reversal of 1320054503 is 3054500231.

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 1320054503 - 2² = 1320054499 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 (1320054523) 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, 51950 + ... + 73067.

It is an arithmetic number, because the mean of its divisors is an integer number (330047520).

Almost surely, 2^1320054503 is an apocalyptic number.

1320054503 is a deficient number, since it is larger than the sum of its proper divisors (135577).

1320054503 is a wasteful number, since it uses less digits than its factorization.

1320054503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135576.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1320054503 is about 36332.5543142785. The cubic root of 1320054503 is about 1096.9764081783.

Adding to 1320054503 its reverse (3054500231), we get a palindrome (4374554734).

The spelling of 1320054503 in words is "one billion, three hundred twenty million, fifty-four thousand, five hundred three".