6611111203 has 2 divisors, whose sum is σ = 6611111204. Its totient is φ = 6611111202.

The previous prime is 6611111137. The next prime is 6611111207. The reversal of 6611111203 is 3021111166.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6611111203 is a prime.

It is not a weakly prime, because it can be changed into another prime (6611111207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305555601 + 3305555602.

It is an arithmetic number, because the mean of its divisors is an integer number (3305555602).

Almost surely, 2^6611111203 is an apocalyptic number.

6611111203 is a deficient number, since it is larger than the sum of its proper divisors (1).

6611111203 is an equidigital number, since it uses as much as digits as its factorization.

6611111203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 6611111203 is about 81308.7400160647. The cubic root of 6611111203 is about 1876.8294987503.

Adding to 6611111203 its reverse (3021111166), we get a palindrome (9632222369).

The spelling of 6611111203 in words is "six billion, six hundred eleven million, one hundred eleven thousand, two hundred three".