4002403043 has 2 divisors, whose sum is σ = 4002403044. Its totient is φ = 4002403042.

The previous prime is 4002403021. The next prime is 4002403049. The reversal of 4002403043 is 3403042004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4002403043 - 2⁶ = 4002402979 is a prime.

It is not a weakly prime, because it can be changed into another prime (4002403049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001201521 + 2001201522.

It is an arithmetic number, because the mean of its divisors is an integer number (2001201522).

Almost surely, 2^4002403043 is an apocalyptic number.

4002403043 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002403043 is an equidigital number, since it uses as much as digits as its factorization.

4002403043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4002403043 is about 63264.5480739411. The cubic root of 4002403043 is about 1587.7188710811.

Adding to 4002403043 its reverse (3403042004), we get a palindrome (7405445047).

The spelling of 4002403043 in words is "four billion, two million, four hundred three thousand, forty-three".