3121000231 has 8 divisors (see below), whose sum is σ = 3221274240. Its totient is φ = 3022305528.

The previous prime is 3121000193. The next prime is 3121000247. The reversal of 3121000231 is 1320001213.

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

It is a cyclic number.

It is not a de Polignac number, because 3121000231 - 2²⁵ = 3087445799 is a prime.

It is a super-2 number, since 2×3121000231² = 19481284883804106722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121000261) 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, 390811 + ... + 398716.

It is an arithmetic number, because the mean of its divisors is an integer number (402659280).

Almost surely, 2^3121000231 is an apocalyptic number.

3121000231 is a deficient number, since it is larger than the sum of its proper divisors (100274009).

3121000231 is an equidigital number, since it uses as much as digits as its factorization.

3121000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789653.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3121000231 is about 55865.9129613041. The cubic root of 3121000231 is about 1461.3848483703.

Adding to 3121000231 its reverse (1320001213), we get a palindrome (4441001444).

The spelling of 3121000231 in words is "three billion, one hundred twenty-one million, two hundred thirty-one", and thus it is an aban number.