3111203993 has 2 divisors, whose sum is σ = 3111203994. Its totient is φ = 3111203992.

The previous prime is 3111203987. The next prime is 3111204007. The reversal of 3111203993 is 3993021113.

3111203993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1888163209 + 1223040784 = 43453^2 + 34972^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111203993 - 2⁶ = 3111203929 is a prime.

It is not a weakly prime, because it can be changed into another prime (3111203903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555601996 + 1555601997.

It is an arithmetic number, because the mean of its divisors is an integer number (1555601997).

Almost surely, 2^3111203993 is an apocalyptic number.

It is an amenable number.

3111203993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111203993 is an equidigital number, since it uses as much as digits as its factorization.

3111203993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 3111203993 is about 55778.1677092391. The cubic root of 3111203993 is about 1459.8542409375.

The spelling of 3111203993 in words is "three billion, one hundred eleven million, two hundred three thousand, nine hundred ninety-three".