312031113 has 8 divisors (see below), whose sum is σ = 421054368. Its totient is φ = 205514304.

The previous prime is 312030997. The next prime is 312031121. The reversal of 312031113 is 311130213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312031113 - 2⁹ = 312030601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312031092 and 312031101.

It is not an unprimeable number, because it can be changed into a prime (312031163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626320 + ... + 626817.

It is an arithmetic number, because the mean of its divisors is an integer number (52631796).

Almost surely, 2^312031113 is an apocalyptic number.

It is an amenable number.

312031113 is a deficient number, since it is larger than the sum of its proper divisors (109023255).

312031113 is a wasteful number, since it uses less digits than its factorization.

312031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253223.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 312031113 is about 17664.4024240844. The cubic root of 312031113 is about 678.2648328880.

Adding to 312031113 its reverse (311130213), we get a palindrome (623161326).

The spelling of 312031113 in words is "three hundred twelve million, thirty-one thousand, one hundred thirteen".