2113545611 has 2 divisors, whose sum is σ = 2113545612. Its totient is φ = 2113545610.

The previous prime is 2113545571. The next prime is 2113545631. The reversal of 2113545611 is 1165453112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113545611 - 2⁶ = 2113545547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113545631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056772805 + 1056772806.

It is an arithmetic number, because the mean of its divisors is an integer number (1056772806).

Almost surely, 2^2113545611 is an apocalyptic number.

2113545611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113545611 is an equidigital number, since it uses as much as digits as its factorization.

2113545611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 2113545611 is about 45973.3141180838. The cubic root of 2113545611 is about 1283.3266355004.

Adding to 2113545611 its reverse (1165453112), we get a palindrome (3278998723).

The spelling of 2113545611 in words is "two billion, one hundred thirteen million, five hundred forty-five thousand, six hundred eleven".