111432213543 has 48 divisors (see below), whose sum is σ = 175200006240. Its totient is φ = 62808480000.

The previous prime is 111432213533. The next prime is 111432213617. The reversal of 111432213543 is 345312234111.

It is not a de Polignac number, because 111432213543 - 2⁵ = 111432213511 is a prime.

It is a super-2 number, since 2×111432213543² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111432213543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111432213533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3979893 + ... + 4007793.

It is an arithmetic number, because the mean of its divisors is an integer number (3650000130).

Almost surely, 2^111432213543 is an apocalyptic number.

111432213543 is a deficient number, since it is larger than the sum of its proper divisors (63767792697).

111432213543 is a wasteful number, since it uses less digits than its factorization.

111432213543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28288 (or 28281 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

Adding to 111432213543 its reverse (345312234111), we get a palindrome (456744447654).

The spelling of 111432213543 in words is "one hundred eleven billion, four hundred thirty-two million, two hundred thirteen thousand, five hundred forty-three".