1112212313 has 4 divisors (see below), whose sum is σ = 1113232848. Its totient is φ = 1111191780.

The previous prime is 1112212247. The next prime is 1112212333. The reversal of 1112212313 is 3132122111.

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 a cyclic number.

It is not a de Polignac number, because 1112212313 - 2²⁴ = 1095435097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1112212291 and 1112212300.

It is not an unprimeable number, because it can be changed into a prime (1112212333) 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, 508631 + ... + 510812.

It is an arithmetic number, because the mean of its divisors is an integer number (278308212).

Almost surely, 2^1112212313 is an apocalyptic number.

It is an amenable number.

1112212313 is a deficient number, since it is larger than the sum of its proper divisors (1020535).

1112212313 is a wasteful number, since it uses less digits than its factorization.

1112212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020534.

The product of its digits is 72, while the sum is 17.

The square root of 1112212313 is about 33349.8472710146. The cubic root of 1112212313 is about 1036.0862247048.

Adding to 1112212313 its reverse (3132122111), we get a palindrome (4244334424).

The spelling of 1112212313 in words is "one billion, one hundred twelve million, two hundred twelve thousand, three hundred thirteen".