13551541111 has 2 divisors, whose sum is σ = 13551541112. Its totient is φ = 13551541110.

The previous prime is 13551541063. The next prime is 13551541121. The reversal of 13551541111 is 11114515531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13551541111 - 2²¹ = 13549443959 is a prime.

It is a super-2 number, since 2×13551541111² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13551541111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13551541121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775770555 + 6775770556.

It is an arithmetic number, because the mean of its divisors is an integer number (6775770556).

Almost surely, 2^13551541111 is an apocalyptic number.

13551541111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551541111 is an equidigital number, since it uses as much as digits as its factorization.

13551541111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 28.

The spelling of 13551541111 in words is "thirteen billion, five hundred fifty-one million, five hundred forty-one thousand, one hundred eleven".