20201043404 has 6 divisors (see below), whose sum is σ = 35351825964. Its totient is φ = 10100521700.

The previous prime is 20201043397. The next prime is 20201043427. The reversal of 20201043404 is 40434010202.

It is a super-2 number, since 2×20201043404² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525130422 + ... + 2525130429.

It is an arithmetic number, because the mean of its divisors is an integer number (5891970994).

Almost surely, 2^20201043404 is an apocalyptic number.

It is an amenable number.

20201043404 is a deficient number, since it is larger than the sum of its proper divisors (15150782560).

20201043404 is a wasteful number, since it uses less digits than its factorization.

20201043404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050260855 (or 5050260853 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20201043404 its reverse (40434010202), we get a palindrome (60635053606).

The spelling of 20201043404 in words is "twenty billion, two hundred one million, forty-three thousand, four hundred four".