113543042231 has 4 divisors (see below), whose sum is σ = 113741892264. Its totient is φ = 113344192200.

The previous prime is 113543042183. The next prime is 113543042243. The reversal of 113543042231 is 132240345311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113543042231 is a prime.

It is a super-2 number, since 2×113543042231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113543042194 and 113543042203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113543041231) 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, 99424160 + ... + 99425301.

It is an arithmetic number, because the mean of its divisors is an integer number (28435473066).

Almost surely, 2^113543042231 is an apocalyptic number.

113543042231 is a deficient number, since it is larger than the sum of its proper divisors (198850033).

113543042231 is an equidigital number, since it uses as much as digits as its factorization.

113543042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198850032.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 113543042231 its reverse (132240345311), we get a palindrome (245783387542).

The spelling of 113543042231 in words is "one hundred thirteen billion, five hundred forty-three million, forty-two thousand, two hundred thirty-one".