42042112423540 has 48 divisors (see below), whose sum is σ = 88357957309440. Its totient is φ = 16803607985280.

The previous prime is 42042112423537. The next prime is 42042112423613. The reversal of 42042112423540 is 4532421124024.

42042112423540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×42042112423540³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 42042112423496 and 42042112423505.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 132524710 + ... + 132841570.

It is an arithmetic number, because the mean of its divisors is an integer number (1840790777280).

Almost surely, 2^{42042112423540} is an apocalyptic number.

It is an amenable number.

42042112423540 is an abundant number, since it is smaller than the sum of its proper divisors (46315844885900).

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

42042112423540 is a wasteful number, since it uses less digits than its factorization.

42042112423540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322072 (or 322070 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 42042112423540 its reverse (4532421124024), we get a palindrome (46574533547564).

The spelling of 42042112423540 in words is "forty-two trillion, forty-two billion, one hundred twelve million, four hundred twenty-three thousand, five hundred forty".