42005342402120 has 16 divisors (see below), whose sum is σ = 94512020404860. Its totient is φ = 16802136960832.

The previous prime is 42005342402117. The next prime is 42005342402167. The reversal of 42005342402120 is 2120424350024.

It can be written as a sum of positive squares in 2 ways, for example, as 41972543018884 + 32799383236 = 6478622^2 + 181106^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525066779987 + ... + 525066780066.

Almost surely, 2^{42005342402120} is an apocalyptic number.

42005342402120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42005342402120 is an abundant number, since it is smaller than the sum of its proper divisors (52506678002740).

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

42005342402120 is a wasteful number, since it uses less digits than its factorization.

42005342402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050133560064 (or 1050133560060 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 42005342402120 its reverse (2120424350024), we get a palindrome (44125766752144).

The spelling of 42005342402120 in words is "forty-two trillion, five billion, three hundred forty-two million, four hundred two thousand, one hundred twenty".