20203043431113 has 80 divisors (see below), whose sum is σ = 31345362284544. Its totient is φ = 12954153057120.

The previous prime is 20203043431069. The next prime is 20203043431121. The reversal of 20203043431113 is 31113434030202.

It is a happy number.

20203043431113 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 304 + 34 + 311 + 13 = 666.

It is not a de Polignac number, because 20203043431113 - 2¹⁶ = 20203043365577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20203043431133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 267456556 + ... + 267532082.

Almost surely, 2^{20203043431113} is an apocalyptic number.

It is an amenable number.

20203043431113 is a deficient number, since it is larger than the sum of its proper divisors (11142318853431).

20203043431113 is a wasteful number, since it uses less digits than its factorization.

20203043431113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76224 (or 76215 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 20203043431113 its reverse (31113434030202), we get a palindrome (51316477461315).

The spelling of 20203043431113 in words is "twenty trillion, two hundred three billion, forty-three million, four hundred thirty-one thousand, one hundred thirteen".