312113929 has 4 divisors (see below), whose sum is σ = 312158080. Its totient is φ = 312069780.

The previous prime is 312113927. The next prime is 312113957. The reversal of 312113929 is 929311213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 929311213 = 47 ⋅19772579.

It is a cyclic number.

It is not a de Polignac number, because 312113929 - 2¹ = 312113927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312113929.

It is not an unprimeable number, because it can be changed into a prime (312113927) 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, 8817 + ... + 26494.

It is an arithmetic number, because the mean of its divisors is an integer number (78039520).

Almost surely, 2^312113929 is an apocalyptic number.

It is an amenable number.

312113929 is a deficient number, since it is larger than the sum of its proper divisors (44151).

312113929 is an equidigital number, since it uses as much as digits as its factorization.

312113929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44150.

The product of its digits is 2916, while the sum is 31.

The square root of 312113929 is about 17666.7464180590. The cubic root of 312113929 is about 678.3248335411.

The spelling of 312113929 in words is "three hundred twelve million, one hundred thirteen thousand, nine hundred twenty-nine".