111343010553 has 24 divisors (see below), whose sum is σ = 166694154120. Its totient is φ = 71531416320.

The previous prime is 111343010539. The next prime is 111343010573. The reversal of 111343010553 is 355010343111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12889515024 + 98453495529 = 113532^2 + 313773^2 .

It is not a de Polignac number, because 111343010553 - 2⁹ = 111343010041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111343010573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273426 + ... + 545387.

It is an arithmetic number, because the mean of its divisors is an integer number (6945589755).

Almost surely, 2^111343010553 is an apocalyptic number.

It is an amenable number.

111343010553 is a deficient number, since it is larger than the sum of its proper divisors (55351143567).

111343010553 is a wasteful number, since it uses less digits than its factorization.

111343010553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819369 (or 819366 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 111343010553 its reverse (355010343111), we get a palindrome (466353353664).

The spelling of 111343010553 in words is "one hundred eleven billion, three hundred forty-three million, ten thousand, five hundred fifty-three".