312005113 has 12 divisors (see below), whose sum is σ = 369304000. Its totient is φ = 258206256.

The previous prime is 312005101. The next prime is 312005123. The reversal of 312005113 is 311500213.

It is a de Polignac number, because none of the positive numbers 2^k-312005113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312005123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20613 + ... + 32386.

Almost surely, 2^312005113 is an apocalyptic number.

It is an amenable number.

312005113 is a deficient number, since it is larger than the sum of its proper divisors (57298887).

312005113 is an equidigital number, since it uses as much as digits as its factorization.

312005113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53064 (or 53035 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 312005113 is about 17663.6664653746. Note that the first 3 decimals coincide. The cubic root of 312005113 is about 678.2459935536.

Adding to 312005113 its reverse (311500213), we get a palindrome (623505326).

The spelling of 312005113 in words is "three hundred twelve million, five thousand, one hundred thirteen".