312045404053 has 4 divisors (see below), whose sum is σ = 320479063660. Its totient is φ = 303611744448.

The previous prime is 312045403997. The next prime is 312045404071. The reversal of 312045404053 is 350404540213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 215334977764 + 96710426289 = 464042^2 + 310983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312045404053 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 (312045414053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4216829748 + ... + 4216829821.

It is an arithmetic number, because the mean of its divisors is an integer number (80119765915).

Almost surely, 2^312045404053 is an apocalyptic number.

It is an amenable number.

312045404053 is a deficient number, since it is larger than the sum of its proper divisors (8433659607).

312045404053 is an equidigital number, since it uses as much as digits as its factorization.

312045404053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8433659606.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 312045404053 its reverse (350404540213), we get a palindrome (662449944266).

The spelling of 312045404053 in words is "three hundred twelve billion, forty-five million, four hundred four thousand, fifty-three".