42352031 has 2 divisors, whose sum is σ = 42352032. Its totient is φ = 42352030.

The previous prime is 42352021. The next prime is 42352067. The reversal of 42352031 is 13025324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42352031 - 2¹⁰ = 42351007 is a prime.

It is a super-2 number, since 2×42352031² = 3587389059649922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42351994 and 42352012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42352001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21176015 + 21176016.

It is an arithmetic number, because the mean of its divisors is an integer number (21176016).

Almost surely, 2^42352031 is an apocalyptic number.

42352031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42352031 is an equidigital number, since it uses as much as digits as its factorization.

42352031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42352031 is about 6507.8438057470. The cubic root of 42352031 is about 348.5711296964.

Adding to 42352031 its reverse (13025324), we get a palindrome (55377355).

The spelling of 42352031 in words is "forty-two million, three hundred fifty-two thousand, thirty-one".