42141121 has 8 divisors (see below), whose sum is σ = 47455488. Its totient is φ = 37074000.

The previous prime is 42141119. The next prime is 42141133. The reversal of 42141121 is 12114124.

It is a happy number.

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 42141121 - 2¹ = 42141119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42141095 and 42141104.

It is not an unprimeable number, because it can be changed into a prime (42141721) 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, 61450 + ... + 62131.

It is an arithmetic number, because the mean of its divisors is an integer number (5931936).

Almost surely, 2^42141121 is an apocalyptic number.

It is an amenable number.

42141121 is a deficient number, since it is larger than the sum of its proper divisors (5314367).

42141121 is a wasteful number, since it uses less digits than its factorization.

42141121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123623.

The product of its digits is 64, while the sum is 16.

The square root of 42141121 is about 6491.6192895148. The cubic root of 42141121 is about 347.9915470048.

Adding to 42141121 its reverse (12114124), we get a palindrome (54255245).

It can be divided in two parts, 4214 and 1121, that added together give a palindrome (5335).

The spelling of 42141121 in words is "forty-two million, one hundred forty-one thousand, one hundred twenty-one".