111534565253 has 4 divisors (see below), whose sum is σ = 111549529740. Its totient is φ = 111519600768.

The previous prime is 111534565213. The next prime is 111534565267. The reversal of 111534565253 is 352565435111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352565435111 = 79 ⋅4462853609.

It can be written as a sum of positive squares in 2 ways, for example, as 25050342529 + 86484222724 = 158273^2 + 294082^2 .

It is a cyclic number.

It is not a de Polignac number, because 111534565253 - 2²⁴ = 111517788037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111534565253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111534565213) 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, 7471058 + ... + 7485971.

It is an arithmetic number, because the mean of its divisors is an integer number (27887382435).

Almost surely, 2^111534565253 is an apocalyptic number.

It is an amenable number.

111534565253 is a deficient number, since it is larger than the sum of its proper divisors (14964487).

111534565253 is an equidigital number, since it uses as much as digits as its factorization.

111534565253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964486.

The product of its digits is 270000, while the sum is 41.

The spelling of 111534565253 in words is "one hundred eleven billion, five hundred thirty-four million, five hundred sixty-five thousand, two hundred fifty-three".