42311033 has 2 divisors, whose sum is σ = 42311034. Its totient is φ = 42311032.

The previous prime is 42310999. The next prime is 42311089. The reversal of 42311033 is 33011324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38278969 + 4032064 = 6187^2 + 2008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42311033 is a prime.

It is not a weakly prime, because it can be changed into another prime (42311333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155516 + 21155517.

It is an arithmetic number, because the mean of its divisors is an integer number (21155517).

Almost surely, 2^42311033 is an apocalyptic number.

It is an amenable number.

42311033 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311033 is an equidigital number, since it uses as much as digits as its factorization.

42311033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 42311033 is about 6504.6931518712. The cubic root of 42311033 is about 348.4586177137.

Adding to 42311033 its reverse (33011324), we get a palindrome (75322357).

The spelling of 42311033 in words is "forty-two million, three hundred eleven thousand, thirty-three".