2042443531 has 2 divisors, whose sum is σ = 2042443532. Its totient is φ = 2042443530.

The previous prime is 2042443519. The next prime is 2042443583. The reversal of 2042443531 is 1353442402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2042443531 - 2¹¹ = 2042441483 is a prime.

It is a super-2 number, since 2×2042443531² = 8343151154647495922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2042443531.

It is not a weakly prime, because it can be changed into another prime (2042443511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021221765 + 1021221766.

It is an arithmetic number, because the mean of its divisors is an integer number (1021221766).

Almost surely, 2^2042443531 is an apocalyptic number.

2042443531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042443531 is an equidigital number, since it uses as much as digits as its factorization.

2042443531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2042443531 is about 45193.4014099404. The cubic root of 2042443531 is about 1268.7713189620.

Adding to 2042443531 its reverse (1353442402), we get a palindrome (3395885933).

The spelling of 2042443531 in words is "two billion, forty-two million, four hundred forty-three thousand, five hundred thirty-one".