42041231 has 2 divisors, whose sum is σ = 42041232. Its totient is φ = 42041230.

The previous prime is 42041183. The next prime is 42041257. The reversal of 42041231 is 13214024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42041231 - 2¹⁴ = 42024847 is a prime.

It is a super-2 number, since 2×42041231² = 3534930207990722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42041431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020615 + 21020616.

It is an arithmetic number, because the mean of its divisors is an integer number (21020616).

Almost surely, 2^42041231 is an apocalyptic number.

42041231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42041231 is an equidigital number, since it uses as much as digits as its factorization.

42041231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42041231 is about 6483.9209588026. The cubic root of 42041231 is about 347.7163733629.

Adding to 42041231 its reverse (13214024), we get a palindrome (55255255).

The spelling of 42041231 in words is "forty-two million, forty-one thousand, two hundred thirty-one".