312113403 has 24 divisors (see below), whose sum is σ = 522931968. Its totient is φ = 175686192.

The previous prime is 312113383. The next prime is 312113407. The reversal of 312113403 is 304311213.

312113403 is a `hidden beast` number, since 312 + 11 + 340 + 3 = 666.

It is not a de Polignac number, because 312113403 - 2⁶ = 312113339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312113407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32751 + ... + 41192.

It is an arithmetic number, because the mean of its divisors is an integer number (21788832).

Almost surely, 2^312113403 is an apocalyptic number.

312113403 is a deficient number, since it is larger than the sum of its proper divisors (210818565).

312113403 is a wasteful number, since it uses less digits than its factorization.

312113403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74023 (or 74020 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 312113403 is about 17666.7315313275. The cubic root of 312113403 is about 678.3244524846.

Adding to 312113403 its reverse (304311213), we get a palindrome (616424616).

The spelling of 312113403 in words is "three hundred twelve million, one hundred thirteen thousand, four hundred three".