42543121022 has 8 divisors (see below), whose sum is σ = 66589232976. Its totient is φ = 20346710032.

The previous prime is 42543121021. The next prime is 42543121031. The reversal of 42543121022 is 22012134524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42543120982 and 42543121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42543121021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 462425183 + ... + 462425274.

It is an arithmetic number, because the mean of its divisors is an integer number (8323654122).

Almost surely, 2^42543121022 is an apocalyptic number.

42543121022 is a deficient number, since it is larger than the sum of its proper divisors (24046111954).

42543121022 is a wasteful number, since it uses less digits than its factorization.

42543121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924850482.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 42543121022 its reverse (22012134524), we get a palindrome (64555255546).

The spelling of 42543121022 in words is "forty-two billion, five hundred forty-three million, one hundred twenty-one thousand, twenty-two".