42123213440041 has 24 divisors (see below), whose sum is σ = 42799150487520. Its totient is φ = 41454115862016.

The previous prime is 42123213440027. The next prime is 42123213440111. The reversal of 42123213440041 is 14004431232124.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-42123213440041 is a prime.

It is a super-2 number, since 2×42123213440041² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42123213439985 and 42123213440012.

It is not an unprimeable number, because it can be changed into a prime (42123213440741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2573344705 + ... + 2573361073.

It is an arithmetic number, because the mean of its divisors is an integer number (1783297936980).

Almost surely, 2^{42123213440041} is an apocalyptic number.

It is an amenable number.

42123213440041 is a deficient number, since it is larger than the sum of its proper divisors (675937047479).

42123213440041 is a wasteful number, since it uses less digits than its factorization.

42123213440041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17385 (or 17152 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 42123213440041 its reverse (14004431232124), we get a palindrome (56127644672165).

The spelling of 42123213440041 in words is "forty-two trillion, one hundred twenty-three billion, two hundred thirteen million, four hundred forty thousand, forty-one".