42121302321112 has 64 divisors (see below), whose sum is σ = 93967073928000. Its totient is φ = 17318488352256.

The previous prime is 42121302321089. The next prime is 42121302321187. The reversal of 42121302321112 is 21112320312124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82346187 + ... + 82856122.

It is an arithmetic number, because the mean of its divisors is an integer number (1468235530125).

Almost surely, 2^{42121302321112} is an apocalyptic number.

It is an amenable number.

42121302321112 is an abundant number, since it is smaller than the sum of its proper divisors (51845771606888).

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

42121302321112 is a wasteful number, since it uses less digits than its factorization.

42121302321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165202508 (or 165202504 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 42121302321112 its reverse (21112320312124), we get a palindrome (63233622633236).

The spelling of 42121302321112 in words is "forty-two trillion, one hundred twenty-one billion, three hundred two million, three hundred twenty-one thousand, one hundred twelve".