42123212043204 has 24 divisors (see below), whose sum is σ = 98728245871360. Its totient is φ = 13978106237664.

The previous prime is 42123212043193. The next prime is 42123212043257. The reversal of 42123212043204 is 40234021232124.

42123212043204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7870552639 + ... + 7870557990.

Almost surely, 2^{42123212043204} is an apocalyptic number.

It is an amenable number.

42123212043204 is an abundant number, since it is smaller than the sum of its proper divisors (56605033828156).

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

42123212043204 is a wasteful number, since it uses less digits than its factorization.

42123212043204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15741110859 (or 15741110857 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 42123212043204 its reverse (40234021232124), we get a palindrome (82357233275328).

The spelling of 42123212043204 in words is "forty-two trillion, one hundred twenty-three billion, two hundred twelve million, forty-three thousand, two hundred four".