20420143004024 has 32 divisors (see below), whose sum is σ = 38827491056640. Its totient is φ = 10066148786400.

The previous prime is 20420143003987. The next prime is 20420143004033. The reversal of 20420143004024 is 42040034102402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20420143003984 and 20420143004002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66183377 + ... + 66491199.

It is an arithmetic number, because the mean of its divisors is an integer number (1213359095520).

Almost surely, 2^{20420143004024} is an apocalyptic number.

It is an amenable number.

20420143004024 is a deficient number, since it is larger than the sum of its proper divisors (18407348052616).

20420143004024 is a wasteful number, since it uses less digits than its factorization.

20420143004024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424691 (or 424687 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20420143004024 its reverse (42040034102402), we get a palindrome (62460177106426).

The spelling of 20420143004024 in words is "twenty trillion, four hundred twenty billion, one hundred forty-three million, four thousand, twenty-four".