20203043431020 has 48 divisors (see below), whose sum is σ = 58393312631808. Its totient is φ = 5213688626880.

The previous prime is 20203043431013. The next prime is 20203043431033. The reversal of 20203043431020 is 2013434030202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5430923794 + ... + 5430927513.

It is an arithmetic number, because the mean of its divisors is an integer number (1216527346496).

Almost surely, 2^{20203043431020} is an apocalyptic number.

20203043431020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203043431020 is an abundant number, since it is smaller than the sum of its proper divisors (38190269200788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20203043431020 is a wasteful number, since it uses less digits than its factorization.

20203043431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10861851350 (or 10861851348 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20203043431020 its reverse (2013434030202), we get a palindrome (22216477461222).

The spelling of 20203043431020 in words is "twenty trillion, two hundred three billion, forty-three million, four hundred thirty-one thousand, twenty".