42043030042 has 8 divisors (see below), whose sum is σ = 67915663956. Its totient is φ = 19404475392.

The previous prime is 42043030031. The next prime is 42043030147. The reversal of 42043030042 is 24003034024.

It can be written as a sum of positive squares in 2 ways, for example, as 41943449601 + 99580441 = 204801^2 + 9979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42043030042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42043029995 and 42043030022.

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, 808519783 + ... + 808519834.

Almost surely, 2^42043030042 is an apocalyptic number.

42043030042 is a deficient number, since it is larger than the sum of its proper divisors (25872633914).

42043030042 is a wasteful number, since it uses less digits than its factorization.

42043030042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617039632.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 42043030042 its reverse (24003034024), we get a palindrome (66046064066).

The spelling of 42043030042 in words is "forty-two billion, forty-three million, thirty thousand, forty-two".