5561103311 has 2 divisors, whose sum is σ = 5561103312. Its totient is φ = 5561103310.

The previous prime is 5561103283. The next prime is 5561103319. The reversal of 5561103311 is 1133011655.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561103311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5561103319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780551655 + 2780551656.

It is an arithmetic number, because the mean of its divisors is an integer number (2780551656).

Almost surely, 2^5561103311 is an apocalyptic number.

5561103311 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561103311 is an equidigital number, since it uses as much as digits as its factorization.

5561103311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 5561103311 is about 74572.8054387120. The cubic root of 5561103311 is about 1771.6869561630.

Adding to 5561103311 its reverse (1133011655), we get a palindrome (6694114966).

The spelling of 5561103311 in words is "five billion, five hundred sixty-one million, one hundred three thousand, three hundred eleven".