13457780111 has 2 divisors, whose sum is σ = 13457780112. Its totient is φ = 13457780110.

The previous prime is 13457780101. The next prime is 13457780117. The reversal of 13457780111 is 11108775431.

13457780111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13457780111 is a prime.

It is a super-2 number, since 2×13457780111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13457780117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6728890055 + 6728890056.

It is an arithmetic number, because the mean of its divisors is an integer number (6728890056).

Almost surely, 2^13457780111 is an apocalyptic number.

13457780111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13457780111 is an equidigital number, since it uses as much as digits as its factorization.

13457780111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 38.

The spelling of 13457780111 in words is "thirteen billion, four hundred fifty-seven million, seven hundred eighty thousand, one hundred eleven".