3121230163 has 2 divisors, whose sum is σ = 3121230164. Its totient is φ = 3121230162.

The previous prime is 3121230137. The next prime is 3121230173. The reversal of 3121230163 is 3610321213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3121230163 - 2⁵ = 3121230131 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121230103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560615081 + 1560615082.

It is an arithmetic number, because the mean of its divisors is an integer number (1560615082).

Almost surely, 2^3121230163 is an apocalyptic number.

3121230163 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121230163 is an equidigital number, since it uses as much as digits as its factorization.

3121230163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3121230163 is about 55867.9708151281. The cubic root of 3121230163 is about 1461.4207354646.

Adding to 3121230163 its reverse (3610321213), we get a palindrome (6731551376).

The spelling of 3121230163 in words is "three billion, one hundred twenty-one million, two hundred thirty thousand, one hundred sixty-three".