111235315453 has 4 divisors (see below), whose sum is σ = 117089805760. Its totient is φ = 105380825148.

The previous prime is 111235315391. The next prime is 111235315459. The reversal of 111235315453 is 354513532111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354513532111 = 17 ⋅20853737183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111235315453 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 (111235315459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2927245125 + ... + 2927245162.

It is an arithmetic number, because the mean of its divisors is an integer number (29272451440).

Almost surely, 2^111235315453 is an apocalyptic number.

It is an amenable number.

111235315453 is a deficient number, since it is larger than the sum of its proper divisors (5854490307).

111235315453 is an equidigital number, since it uses as much as digits as its factorization.

111235315453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854490306.

The product of its digits is 27000, while the sum is 34.

Adding to 111235315453 its reverse (354513532111), we get a palindrome (465748847564).

The spelling of 111235315453 in words is "one hundred eleven billion, two hundred thirty-five million, three hundred fifteen thousand, four hundred fifty-three".