20430120444004 has 6 divisors (see below), whose sum is σ = 35752710777014. Its totient is φ = 10215060222000.

The previous prime is 20430120443879. The next prime is 20430120444011. The reversal of 20430120444004 is 40044402103402.

It can be written as a sum of positive squares in only one way, i.e., 11546132161600 + 8883988282404 = 3397960^2 + 2980602^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553765055497 + ... + 2553765055504.

Almost surely, 2^{20430120444004} is an apocalyptic number.

It is an amenable number.

20430120444004 is a deficient number, since it is larger than the sum of its proper divisors (15322590333010).

20430120444004 is a wasteful number, since it uses less digits than its factorization.

20430120444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107530111005 (or 5107530111003 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20430120444004 its reverse (40044402103402), we get a palindrome (60474522547406).

The spelling of 20430120444004 in words is "twenty trillion, four hundred thirty billion, one hundred twenty million, four hundred forty-four thousand, four".