3121130231 has 8 divisors (see below), whose sum is σ = 3163734000. Its totient is φ = 3078694080.

The previous prime is 3121130161. The next prime is 3121130239. The reversal of 3121130231 is 1320311213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121130231 is a prime.

It is a super-2 number, since 2×3121130231² = 19482907837724226722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121130239) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4181 + ... + 79118.

It is an arithmetic number, because the mean of its divisors is an integer number (395466750).

Almost surely, 2^3121130231 is an apocalyptic number.

3121130231 is a deficient number, since it is larger than the sum of its proper divisors (42603769).

3121130231 is an equidigital number, since it uses as much as digits as its factorization.

3121130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83809.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3121130231 is about 55867.0764493722. The cubic root of 3121130231 is about 1461.4051385955.

Adding to 3121130231 its reverse (1320311213), we get a palindrome (4441441444).

The spelling of 3121130231 in words is "three billion, one hundred twenty-one million, one hundred thirty thousand, two hundred thirty-one".