4123231331 has 4 divisors (see below), whose sum is σ = 4129047600. Its totient is φ = 4117415064.

The previous prime is 4123231313. The next prime is 4123231361. The reversal of 4123231331 is 1331323214.

4123231331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4123231331 - 2⁶ = 4123231267 is a prime.

It is a super-2 number, since 2×4123231331² = 34002073217880063122, 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 = 4123231297 and 4123231306.

It is not an unprimeable number, because it can be changed into a prime (4123231361) 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, 2907071 + ... + 2908488.

It is an arithmetic number, because the mean of its divisors is an integer number (1032261900).

Almost surely, 2^4123231331 is an apocalyptic number.

4123231331 is a deficient number, since it is larger than the sum of its proper divisors (5816269).

4123231331 is an equidigital number, since it uses as much as digits as its factorization.

4123231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816268.

The product of its digits is 1296, while the sum is 23.

The square root of 4123231331 is about 64212.3923475835. The cubic root of 4123231331 is about 1603.5379174206.

Adding to 4123231331 its reverse (1331323214), we get a palindrome (5454554545).

The spelling of 4123231331 in words is "four billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred thirty-one".