42430104020 has 12 divisors (see below), whose sum is σ = 89103218484. Its totient is φ = 16972041600.

The previous prime is 42430104001. The next prime is 42430104061. The reversal of 42430104020 is 2040103424.

It can be written as a sum of positive squares in 2 ways, for example, as 22556435344 + 19873668676 = 150188^2 + 140974^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2121505201 = 42430104020 / (4 + 2 + 4 + 3 + 0 + 1 + 0 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 42430103983 and 42430104001.

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, 1060752581 + ... + 1060752620.

It is an arithmetic number, because the mean of its divisors is an integer number (7425268207).

Almost surely, 2^42430104020 is an apocalyptic number.

It is an amenable number.

42430104020 is an abundant number, since it is smaller than the sum of its proper divisors (46673114464).

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

42430104020 is a wasteful number, since it uses less digits than its factorization.

42430104020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121505210 (or 2121505208 counting only the distinct ones).

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

Adding to 42430104020 its reverse (2040103424), we get a palindrome (44470207444).

The spelling of 42430104020 in words is "forty-two billion, four hundred thirty million, one hundred four thousand, twenty".