113212321223 has 4 divisors (see below), whose sum is σ = 113533036368. Its totient is φ = 112891606080.

The previous prime is 113212321163. The next prime is 113212321267. The reversal of 113212321223 is 322123212311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322123212311 = 23 ⋅14005357057.

It is a cyclic number.

It is not a de Polignac number, because 113212321223 - 2²² = 113208126919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212323223) 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, 160357043 + ... + 160357748.

It is an arithmetic number, because the mean of its divisors is an integer number (28383259092).

Almost surely, 2^113212321223 is an apocalyptic number.

113212321223 is a deficient number, since it is larger than the sum of its proper divisors (320715145).

113212321223 is an equidigital number, since it uses as much as digits as its factorization.

113212321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320715144.

The product of its digits is 864, while the sum is 23.

Adding to 113212321223 its reverse (322123212311), we get a palindrome (435335533534).

The spelling of 113212321223 in words is "one hundred thirteen billion, two hundred twelve million, three hundred twenty-one thousand, two hundred twenty-three".