20204111430 has 48 divisors (see below), whose sum is σ = 54225235584. Its totient is φ = 5213963520.

The previous prime is 20204111423. The next prime is 20204111441. The reversal of 20204111430 is 3411140202.

20204111430 is a `hidden beast` number, since 20 + 204 + 1 + 11 + 430 = 666.

It is a super-2 number, since 2×20204111430² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3618019 + ... + 3623598.

It is an arithmetic number, because the mean of its divisors is an integer number (1129692408).

Almost surely, 2^20204111430 is an apocalyptic number.

20204111430 is an abundant number, since it is smaller than the sum of its proper divisors (34021124154).

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

20204111430 is a wasteful number, since it uses less digits than its factorization.

20204111430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241661 (or 7241658 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20204111430 its reverse (3411140202), we get a palindrome (23615251632).

The spelling of 20204111430 in words is "twenty billion, two hundred four million, one hundred eleven thousand, four hundred thirty".