20423150353204 has 12 divisors (see below), whose sum is σ = 35740809909504. Its totient is φ = 10211490379064.

The previous prime is 20423150353189. The next prime is 20423150353261. The reversal of 20423150353204 is 40235305132402.

It is a self number, because there is not a number n which added to its sum of digits gives 20423150353204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20655934 + ... + 21622069.

It is an arithmetic number, because the mean of its divisors is an integer number (2978400825792).

Almost surely, 2^{20423150353204} is an apocalyptic number.

It is an amenable number.

20423150353204 is a deficient number, since it is larger than the sum of its proper divisors (15317659556300).

20423150353204 is a wasteful number, since it uses less digits than its factorization.

20423150353204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42398774 (or 42398772 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 20423150353204 its reverse (40235305132402), we get a palindrome (60658455485606).

The spelling of 20423150353204 in words is "twenty trillion, four hundred twenty-three billion, one hundred fifty million, three hundred fifty-three thousand, two hundred four".