42054918123 has 8 divisors (see below), whose sum is σ = 58511190528. Its totient is φ = 26817628904.

The previous prime is 42054918097. The next prime is 42054918167. The reversal of 42054918123 is 32181945024.

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 42054918123 - 2¹³ = 42054909931 is a prime.

It is a super-2 number, since 2×42054918123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42054918173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304745715 + ... + 304745852.

It is an arithmetic number, because the mean of its divisors is an integer number (7313898816).

Almost surely, 2^42054918123 is an apocalyptic number.

42054918123 is a deficient number, since it is larger than the sum of its proper divisors (16456272405).

42054918123 is a wasteful number, since it uses less digits than its factorization.

42054918123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609491593.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 42054918123 in words is "forty-two billion, fifty-four million, nine hundred eighteen thousand, one hundred twenty-three".