20013653143203 has 16 divisors (see below), whose sum is σ = 26986240512000. Its totient is φ = 13191767709120.

The previous prime is 20013653143201. The next prime is 20013653143213. The reversal of 20013653143203 is 30234135631002.

It is not a de Polignac number, because 20013653143203 - 2¹ = 20013653143201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20013653143201) 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, 2569338 + ... + 6828528.

It is an arithmetic number, because the mean of its divisors is an integer number (1686640032000).

Almost surely, 2^{20013653143203} is an apocalyptic number.

20013653143203 is a deficient number, since it is larger than the sum of its proper divisors (6972587368797).

20013653143203 is a wasteful number, since it uses less digits than its factorization.

20013653143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276882.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 20013653143203 its reverse (30234135631002), we get a palindrome (50247788774205).

The spelling of 20013653143203 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, one hundred forty-three thousand, two hundred three".