42002120234 has 16 divisors (see below), whose sum is σ = 63580543488. Its totient is φ = 20809400112.

The previous prime is 42002120183. The next prime is 42002120263. The reversal of 42002120234 is 43202120024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92474 + ... + 304229.

It is an arithmetic number, because the mean of its divisors is an integer number (3973783968).

Almost surely, 2^42002120234 is an apocalyptic number.

42002120234 is a deficient number, since it is larger than the sum of its proper divisors (21578423254).

42002120234 is a wasteful number, since it uses less digits than its factorization.

42002120234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397189.

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

Adding to 42002120234 its reverse (43202120024), we get a palindrome (85204240258).

The spelling of 42002120234 in words is "forty-two billion, two million, one hundred twenty thousand, two hundred thirty-four".