20503134003053 has 16 divisors (see below), whose sum is σ = 22309946144640. Its totient is φ = 18729550689984.

The previous prime is 20503134003017. The next prime is 20503134003151. The reversal of 20503134003053 is 35030043130502.

It is a cyclic number.

It is not a de Polignac number, because 20503134003053 - 2³⁰ = 20502060261229 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 (20503134003013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7624451 + ... + 9956832.

It is an arithmetic number, because the mean of its divisors is an integer number (1394371634040).

Almost surely, 2^{20503134003053} is an apocalyptic number.

It is an amenable number.

20503134003053 is a deficient number, since it is larger than the sum of its proper divisors (1806812141587).

20503134003053 is a wasteful number, since it uses less digits than its factorization.

20503134003053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17582228.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 20503134003053 its reverse (35030043130502), we get a palindrome (55533177133555).

The spelling of 20503134003053 in words is "twenty trillion, five hundred three billion, one hundred thirty-four million, three thousand, fifty-three".