42141321 has 12 divisors (see below), whose sum is σ = 62970180. Its totient is φ = 27125280.

The previous prime is 42141299. The next prime is 42141347. The reversal of 42141321 is 12314124.

It can be written as a sum of positive squares in 2 ways, for example, as 15515721 + 26625600 = 3939^2 + 5160^2 .

It is not a de Polignac number, because 42141321 - 2⁶ = 42141257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42141294 and 42141303.

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 11 ways as a sum of consecutive naturals, for example, 80470 + ... + 80991.

It is an arithmetic number, because the mean of its divisors is an integer number (5247515).

Almost surely, 2^42141321 is an apocalyptic number.

It is an amenable number.

42141321 is a deficient number, since it is larger than the sum of its proper divisors (20828859).

42141321 is a wasteful number, since it uses less digits than its factorization.

42141321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161496 (or 161493 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 42141321 is about 6491.6346939735. The cubic root of 42141321 is about 347.9920975217.

Adding to 42141321 its reverse (12314124), we get a palindrome (54455445).

The spelling of 42141321 in words is "forty-two million, one hundred forty-one thousand, three hundred twenty-one".