20003554203142 has 16 divisors (see below), whose sum is σ = 30416659373520. Its totient is φ = 9864670413312.

The previous prime is 20003554203131. The next prime is 20003554203181. The reversal of 20003554203142 is 24130245530002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15761398 + ... + 16983190.

It is an arithmetic number, because the mean of its divisors is an integer number (1901041210845).

Almost surely, 2^{20003554203142} is an apocalyptic number.

20003554203142 is a deficient number, since it is larger than the sum of its proper divisors (10413105170378).

20003554203142 is a wasteful number, since it uses less digits than its factorization.

20003554203142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334007.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20003554203142 its reverse (24130245530002), we get a palindrome (44133799733144).

The spelling of 20003554203142 in words is "twenty trillion, three billion, five hundred fifty-four million, two hundred three thousand, one hundred forty-two".