3123312231 has 8 divisors (see below), whose sum is σ = 4484756080. Its totient is φ = 1922038272.

The previous prime is 3123312187. The next prime is 3123312239. The reversal of 3123312231 is 1322133213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3123312231 - 2¹⁵ = 3123279463 is a prime.

It is a super-2 number, since 2×3123312231² = 19510158584628394722, 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 = 3123312198 and 3123312207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123312239) 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 7 ways as a sum of consecutive naturals, for example, 40042426 + ... + 40042503.

It is an arithmetic number, because the mean of its divisors is an integer number (560594510).

Almost surely, 2^3123312231 is an apocalyptic number.

3123312231 is a deficient number, since it is larger than the sum of its proper divisors (1361443849).

3123312231 is a wasteful number, since it uses less digits than its factorization.

3123312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80084945.

The product of its digits is 648, while the sum is 21.

The square root of 3123312231 is about 55886.6015338203. The cubic root of 3123312231 is about 1461.7456181617.

Adding to 3123312231 its reverse (1322133213), we get a palindrome (4445445444).

The spelling of 3123312231 in words is "three billion, one hundred twenty-three million, three hundred twelve thousand, two hundred thirty-one".