111513434453 has 16 divisors (see below), whose sum is σ = 116152909824. Its totient is φ = 106941098880.

The previous prime is 111513434443. The next prime is 111513434491. The reversal of 111513434453 is 354434315111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111513434453 - 2¹⁴ = 111513418069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111513434443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3436601 + ... + 3468897.

It is an arithmetic number, because the mean of its divisors is an integer number (7259556864).

Almost surely, 2^111513434453 is an apocalyptic number.

It is an amenable number.

111513434453 is a deficient number, since it is larger than the sum of its proper divisors (4639475371).

111513434453 is a wasteful number, since it uses less digits than its factorization.

111513434453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33332.

The product of its digits is 43200, while the sum is 35.

Adding to 111513434453 its reverse (354434315111), we get a palindrome (465947749564).

The spelling of 111513434453 in words is "one hundred eleven billion, five hundred thirteen million, four hundred thirty-four thousand, four hundred fifty-three".