113031231223 has 4 divisors (see below), whose sum is σ = 113247352648. Its totient is φ = 112815109800.

The previous prime is 113031231179. The next prime is 113031231277. The reversal of 113031231223 is 322132130311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322132130311 = 47 ⋅6853875113.

It is a cyclic number.

It is not a de Polignac number, because 113031231223 - 2¹³ = 113031223031 is a prime.

It is a super-3 number, since 3×113031231223³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113031231194 and 113031231203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113031231293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108059928 + ... + 108060973.

It is an arithmetic number, because the mean of its divisors is an integer number (28311838162).

Almost surely, 2^113031231223 is an apocalyptic number.

113031231223 is a deficient number, since it is larger than the sum of its proper divisors (216121425).

113031231223 is an equidigital number, since it uses as much as digits as its factorization.

113031231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216121424.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 113031231223 its reverse (322132130311), we get a palindrome (435163361534).

The spelling of 113031231223 in words is "one hundred thirteen billion, thirty-one million, two hundred thirty-one thousand, two hundred twenty-three".