42135545023 has 8 divisors (see below), whose sum is σ = 49501899216. Its totient is φ = 35358499200.

The previous prime is 42135544951. The next prime is 42135545033. The reversal of 42135545023 is 32054553124.

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 42135545023 - 2²¹ = 42133447871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42135545023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42135545033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147326938 + ... + 147327223.

It is an arithmetic number, because the mean of its divisors is an integer number (6187737402).

Almost surely, 2^42135545023 is an apocalyptic number.

42135545023 is a deficient number, since it is larger than the sum of its proper divisors (7366354193).

42135545023 is a wasteful number, since it uses less digits than its factorization.

42135545023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294654185.

The product of its (nonzero) digits is 72000, while the sum is 34.

It can be divided in two parts, 421 and 35545023, that added together give a square (35545444 = 5962²).

The spelling of 42135545023 in words is "forty-two billion, one hundred thirty-five million, five hundred forty-five thousand, twenty-three".