42520544123 has 8 divisors (see below), whose sum is σ = 42673218000. Its totient is φ = 42367922208.

The previous prime is 42520544063. The next prime is 42520544137. The reversal of 42520544123 is 32144502524.

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

It is a cyclic number.

It is not a de Polignac number, because 42520544123 - 2¹⁴ = 42520527739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42520544123.

It is not an unprimeable number, because it can be changed into a prime (42520547123) 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 7 ways as a sum of consecutive naturals, for example, 2449328 + ... + 2466626.

It is an arithmetic number, because the mean of its divisors is an integer number (5334152250).

Almost surely, 2^42520544123 is an apocalyptic number.

42520544123 is a deficient number, since it is larger than the sum of its proper divisors (152673877).

42520544123 is a wasteful number, since it uses less digits than its factorization.

42520544123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25981.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 42520544123 in words is "forty-two billion, five hundred twenty million, five hundred forty-four thousand, one hundred twenty-three".