111435253543 has 2 divisors, whose sum is σ = 111435253544. Its totient is φ = 111435253542.

The previous prime is 111435253519. The next prime is 111435253547. The reversal of 111435253543 is 345352534111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111435253543 - 2²¹ = 111433156391 is a prime.

It is a super-3 number, since 3×111435253543³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111435253547) 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, 55717626771 + 55717626772.

It is an arithmetic number, because the mean of its divisors is an integer number (55717626772).

Almost surely, 2^111435253543 is an apocalyptic number.

111435253543 is a deficient number, since it is larger than the sum of its proper divisors (1).

111435253543 is an equidigital number, since it uses as much as digits as its factorization.

111435253543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 37.

Adding to 111435253543 its reverse (345352534111), we get a palindrome (456787787654).

The spelling of 111435253543 in words is "one hundred eleven billion, four hundred thirty-five million, two hundred fifty-three thousand, five hundred forty-three".