42003004122 has 12 divisors (see below), whose sum is σ = 91006508970. Its totient is φ = 14001001368.

The previous prime is 42003004061. The next prime is 42003004139. The reversal of 42003004122 is 22140030024.

It can be written as a sum of positive squares in only one way, i.e., 35728938441 + 6274065681 = 189021^2 + 79209^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2333500229 = 42003004122 / (4 + 2 + 0 + 0 + 3 + 0 + 0 + 4 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 42003004095 and 42003004104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1166750097 + ... + 1166750132.

Almost surely, 2^42003004122 is an apocalyptic number.

42003004122 is an abundant number, since it is smaller than the sum of its proper divisors (49003504848).

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

42003004122 is a wasteful number, since it uses less digits than its factorization.

42003004122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333500237 (or 2333500234 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 42003004122 its reverse (22140030024), we get a palindrome (64143034146).

The spelling of 42003004122 in words is "forty-two billion, three million, four thousand, one hundred twenty-two".