3121231203 has 12 divisors (see below), whose sum is σ = 4509699480. Its totient is φ = 2080241856.

The previous prime is 3121231199. The next prime is 3121231207. The reversal of 3121231203 is 3021321213.

It is an interprime number because it is at equal distance from previous prime (3121231199) and next prime (3121231207).

It is not a de Polignac number, because 3121231203 - 2² = 3121231199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121231207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12726 + ... + 80027.

It is an arithmetic number, because the mean of its divisors is an integer number (375808290).

Almost surely, 2^3121231203 is an apocalyptic number.

3121231203 is a deficient number, since it is larger than the sum of its proper divisors (1388468277).

3121231203 is a wasteful number, since it uses less digits than its factorization.

3121231203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96498 (or 96495 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3121231203 is about 55867.9801227859. The cubic root of 3121231203 is about 1461.4208977807.

Adding to 3121231203 its reverse (3021321213), we get a palindrome (6142552416).

The spelling of 3121231203 in words is "three billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred three".