4042120331 has 4 divisors (see below), whose sum is σ = 4042984512. Its totient is φ = 4041256152.

The previous prime is 4042120319. The next prime is 4042120343. The reversal of 4042120331 is 1330212404.

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

It is an interprime number because it is at equal distance from previous prime (4042120319) and next prime (4042120343).

It is a cyclic number.

It is not a de Polignac number, because 4042120331 - 2³⁰ = 2968378507 is a prime.

It is a super-2 number, since 2×4042120331² = 32677473540567099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042120301) 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 in 3 ways as a sum of consecutive naturals, for example, 425036 + ... + 434441.

It is an arithmetic number, because the mean of its divisors is an integer number (1010746128).

Almost surely, 2^4042120331 is an apocalyptic number.

4042120331 is a deficient number, since it is larger than the sum of its proper divisors (864181).

4042120331 is an equidigital number, since it uses as much as digits as its factorization.

4042120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864180.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4042120331 is about 63577.6716387129. The cubic root of 4042120331 is about 1592.9534298131.

Adding to 4042120331 its reverse (1330212404), we get a palindrome (5372332735).

The spelling of 4042120331 in words is "four billion, forty-two million, one hundred twenty thousand, three hundred thirty-one".