113212321111 has 4 divisors (see below), whose sum is σ = 115845165832. Its totient is φ = 110579476392.

The previous prime is 113212321087. The next prime is 113212321153. The reversal of 113212321111 is 111123212311.

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

It is a cyclic number.

It is not a de Polignac number, because 113212321111 - 2¹³ = 113212312919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212328111) 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, 1316422296 + ... + 1316422381.

It is an arithmetic number, because the mean of its divisors is an integer number (28961291458).

Almost surely, 2^113212321111 is an apocalyptic number.

113212321111 is a deficient number, since it is larger than the sum of its proper divisors (2632844721).

113212321111 is an equidigital number, since it uses as much as digits as its factorization.

113212321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632844720.

The product of its digits is 72, while the sum is 19.

Adding to 113212321111 its reverse (111123212311), we get a palindrome (224335533422).

The spelling of 113212321111 in words is "one hundred thirteen billion, two hundred twelve million, three hundred twenty-one thousand, one hundred eleven".