13550215111 has 2 divisors, whose sum is σ = 13550215112. Its totient is φ = 13550215110.

The previous prime is 13550215087. The next prime is 13550215121. The reversal of 13550215111 is 11151205531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13550215111 - 2¹⁹ = 13549690823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13550215121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775107555 + 6775107556.

It is an arithmetic number, because the mean of its divisors is an integer number (6775107556).

Almost surely, 2^13550215111 is an apocalyptic number.

13550215111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550215111 is an equidigital number, since it uses as much as digits as its factorization.

13550215111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 13550215111 in words is "thirteen billion, five hundred fifty million, two hundred fifteen thousand, one hundred eleven".