312113 has 4 divisors (see below), whose sum is σ = 328560. Its totient is φ = 295668.

The previous prime is 312107. The next prime is 312121. The reversal of 312113 is 311213.

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 312113 - 2¹² = 308017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312094 and 312103.

It is not an unprimeable number, because it can be changed into a prime (312313) 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, 8195 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (82140).

2³¹²¹¹³ is an apocalyptic number.

It is an amenable number.

312113 is a deficient number, since it is larger than the sum of its proper divisors (16447).

312113 is a wasteful number, since it uses less digits than its factorization.

312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16446.

The product of its digits is 18, while the sum is 11.

The square root of 312113 is about 558.6707438196. The cubic root of 312113 is about 67.8324160534.

Adding to 312113 its reverse (311213), we get a palindrome (623326).

Subtracting from 312113 its reverse (311213), we obtain a square (900 = 30²).

The spelling of 312113 in words is "three hundred twelve thousand, one hundred thirteen".