42366031 has 2 divisors, whose sum is σ = 42366032. Its totient is φ = 42366030.

The previous prime is 42365993. The next prime is 42366053. The reversal of 42366031 is 13066324.

42366031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42366031 is a prime.

It is a super-2 number, since 2×42366031² = 3589761165385922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42365987 and 42366005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42366631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21183015 + 21183016.

It is an arithmetic number, because the mean of its divisors is an integer number (21183016).

Almost surely, 2^42366031 is an apocalyptic number.

42366031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42366031 is an equidigital number, since it uses as much as digits as its factorization.

42366031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42366031 is about 6508.9193419492. The cubic root of 42366031 is about 348.6095336649.

The spelling of 42366031 in words is "forty-two million, three hundred sixty-six thousand, thirty-one".