112311313221 has 4 divisors (see below), whose sum is σ = 149748417632. Its totient is φ = 74874208812.

The previous prime is 112311313211. The next prime is 112311313249. The reversal of 112311313221 is 122313113211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 112311313221 - 2⁶ = 112311313157 is a prime.

It is a super-2 number, since 2×112311313221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112311313211) 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, 18718552201 + ... + 18718552206.

It is an arithmetic number, because the mean of its divisors is an integer number (37437104408).

Almost surely, 2^112311313221 is an apocalyptic number.

It is an amenable number.

112311313221 is a deficient number, since it is larger than the sum of its proper divisors (37437104411).

112311313221 is an equidigital number, since it uses as much as digits as its factorization.

112311313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37437104410.

The product of its digits is 216, while the sum is 21.

Adding to 112311313221 its reverse (122313113211), we get a palindrome (234624426432).

The spelling of 112311313221 in words is "one hundred twelve billion, three hundred eleven million, three hundred thirteen thousand, two hundred twenty-one".