4242123331 has 4 divisors (see below), whose sum is σ = 4465393000. Its totient is φ = 4018853664.

The previous prime is 4242123317. The next prime is 4242123349. The reversal of 4242123331 is 1333212424.

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

It is a cyclic number.

It is not a de Polignac number, because 4242123331 - 2¹³ = 4242115139 is a prime.

It is a super-2 number, since 2×4242123331² = 35991220710829071122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4242123296 and 4242123305.

It is not an unprimeable number, because it can be changed into a prime (4242123031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111634806 + ... + 111634843.

It is an arithmetic number, because the mean of its divisors is an integer number (1116348250).

Almost surely, 2^4242123331 is an apocalyptic number.

4242123331 is a deficient number, since it is larger than the sum of its proper divisors (223269669).

4242123331 is a wasteful number, since it uses less digits than its factorization.

4242123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223269668.

The product of its digits is 3456, while the sum is 25.

The square root of 4242123331 is about 65131.5847419668. The cubic root of 4242123331 is about 1618.8046014170.

Adding to 4242123331 its reverse (1333212424), we get a palindrome (5575335755).

The spelling of 4242123331 in words is "four billion, two hundred forty-two million, one hundred twenty-three thousand, three hundred thirty-one".