42003123412 has 12 divisors (see below), whose sum is σ = 73508984640. Its totient is φ = 21000556376.

The previous prime is 42003123367. The next prime is 42003123451. The reversal of 42003123412 is 21432130024.

42003123412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 153058 + ... + 327769.

It is an arithmetic number, because the mean of its divisors is an integer number (6125748720).

Almost surely, 2^42003123412 is an apocalyptic number.

It is an amenable number.

42003123412 is a deficient number, since it is larger than the sum of its proper divisors (31505861228).

42003123412 is a wasteful number, since it uses less digits than its factorization.

42003123412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502670 (or 502668 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42003123412 its reverse (21432130024), we get a palindrome (63435253436).

The spelling of 42003123412 in words is "forty-two billion, three million, one hundred twenty-three thousand, four hundred twelve".