4123430042 has 4 divisors (see below), whose sum is σ = 6185145066. Its totient is φ = 2061715020.

The previous prime is 4123430021. The next prime is 4123430057. The reversal of 4123430042 is 2400343214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3010607161 + 1112822881 = 54869^2 + 33359^2 .

It is a super-2 number, since 2×4123430042² = 34005350622536243528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030857509 + ... + 1030857512.

Almost surely, 2^4123430042 is an apocalyptic number.

4123430042 is a deficient number, since it is larger than the sum of its proper divisors (2061715024).

4123430042 is a wasteful number, since it uses less digits than its factorization.

4123430042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061715023.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4123430042 is about 64213.9396237297. The cubic root of 4123430042 is about 1603.5636767890.

Adding to 4123430042 its reverse (2400343214), we get a palindrome (6523773256).

The spelling of 4123430042 in words is "four billion, one hundred twenty-three million, four hundred thirty thousand, forty-two".