20004153030503 has 4 divisors (see below), whose sum is σ = 20007528125520. Its totient is φ = 20000777935488.

The previous prime is 20004153030493. The next prime is 20004153030571. The reversal of 20004153030503 is 30503035140002.

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 20004153030503 - 2²⁴ = 20004136253287 is a prime.

It is a super-2 number, since 2×20004153030503² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004153030593) 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, 1687538618 + ... + 1687550471.

It is an arithmetic number, because the mean of its divisors is an integer number (5001882031380).

Almost surely, 2^{20004153030503} is an apocalyptic number.

20004153030503 is a deficient number, since it is larger than the sum of its proper divisors (3375095017).

20004153030503 is an equidigital number, since it uses as much as digits as its factorization.

20004153030503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375095016.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 20004153030503 its reverse (30503035140002), we get a palindrome (50507188170505).

The spelling of 20004153030503 in words is "twenty trillion, four billion, one hundred fifty-three million, thirty thousand, five hundred three".