111152133431 has 4 divisors (see below), whose sum is σ = 111154180200. Its totient is φ = 111150086664.

The previous prime is 111152133409. The next prime is 111152133437. The reversal of 111152133431 is 134331251111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134331251111 = 97511 ⋅1377601.

It is a cyclic number.

It is not a de Polignac number, because 111152133431 - 2¹⁴ = 111152117047 is a prime.

It is a super-4 number, since 4×111152133431⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 111152133431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111152133437) 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, 939641 + ... + 1051298.

It is an arithmetic number, because the mean of its divisors is an integer number (27788545050).

Almost surely, 2^111152133431 is an apocalyptic number.

111152133431 is a deficient number, since it is larger than the sum of its proper divisors (2046769).

111152133431 is an equidigital number, since it uses as much as digits as its factorization.

111152133431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046768.

The product of its digits is 1080, while the sum is 26.

Adding to 111152133431 its reverse (134331251111), we get a palindrome (245483384542).

The spelling of 111152133431 in words is "one hundred eleven billion, one hundred fifty-two million, one hundred thirty-three thousand, four hundred thirty-one".