312124103 has 4 divisors (see below), whose sum is σ = 319736928. Its totient is φ = 304511280.

The previous prime is 312124091. The next prime is 312124117. The reversal of 312124103 is 301421213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312124103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312154103) 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, 3806351 + ... + 3806432.

It is an arithmetic number, because the mean of its divisors is an integer number (79934232).

Almost surely, 2^312124103 is an apocalyptic number.

312124103 is a deficient number, since it is larger than the sum of its proper divisors (7612825).

312124103 is an equidigital number, since it uses as much as digits as its factorization.

312124103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612824.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 312124103 is about 17667.0343578089. The cubic root of 312124103 is about 678.3322039287.

Adding to 312124103 its reverse (301421213), we get a palindrome (613545316).

The spelling of 312124103 in words is "three hundred twelve million, one hundred twenty-four thousand, one hundred three".