4005234031 has 2 divisors, whose sum is σ = 4005234032. Its totient is φ = 4005234030.

The previous prime is 4005234019. The next prime is 4005234047. The reversal of 4005234031 is 1304325004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4005234031 is a prime.

It is a super-2 number, since 2×4005234031² = 32083799286161017922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4005233993 and 4005234011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4005234061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002617015 + 2002617016.

It is an arithmetic number, because the mean of its divisors is an integer number (2002617016).

Almost surely, 2^4005234031 is an apocalyptic number.

4005234031 is a deficient number, since it is larger than the sum of its proper divisors (1).

4005234031 is an equidigital number, since it uses as much as digits as its factorization.

4005234031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4005234031 is about 63286.9183244057. The cubic root of 4005234031 is about 1588.0931257209.

Adding to 4005234031 its reverse (1304325004), we get a palindrome (5309559035).

The spelling of 4005234031 in words is "four billion, five million, two hundred thirty-four thousand, thirty-one".