3121131203 has 2 divisors, whose sum is σ = 3121131204. Its totient is φ = 3121131202.

The previous prime is 3121131163. The next prime is 3121131241. The reversal of 3121131203 is 3021311213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3121131203 - 2¹⁶ = 3121065667 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121131703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560565601 + 1560565602.

It is an arithmetic number, because the mean of its divisors is an integer number (1560565602).

Almost surely, 2^3121131203 is an apocalyptic number.

3121131203 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121131203 is an equidigital number, since it uses as much as digits as its factorization.

3121131203 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3121131203 is about 55867.0851485917. The cubic root of 3121131203 is about 1461.4052903018.

Adding to 3121131203 its reverse (3021311213), we get a palindrome (6142442416).

The spelling of 3121131203 in words is "three billion, one hundred twenty-one million, one hundred thirty-one thousand, two hundred three".