312443415403 has 4 divisors (see below), whose sum is σ = 357078189040. Its totient is φ = 267808641768.

The previous prime is 312443415373. The next prime is 312443415503. The reversal of 312443415403 is 304514344213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304514344213 = 12763 ⋅23859151.

It is a cyclic number.

It is not a de Polignac number, because 312443415403 - 2⁹ = 312443414891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312443415103) 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, 22317386808 + ... + 22317386821.

It is an arithmetic number, because the mean of its divisors is an integer number (89269547260).

Almost surely, 2^312443415403 is an apocalyptic number.

312443415403 is a deficient number, since it is larger than the sum of its proper divisors (44634773637).

312443415403 is an equidigital number, since it uses as much as digits as its factorization.

312443415403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44634773636.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 312443415403 its reverse (304514344213), we get a palindrome (616957759616).

The spelling of 312443415403 in words is "three hundred twelve billion, four hundred forty-three million, four hundred fifteen thousand, four hundred three".