312542303 has 4 divisors (see below), whose sum is σ = 320165328. Its totient is φ = 304919280.

The previous prime is 312542299. The next prime is 312542323. The reversal of 312542303 is 303245213.

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

It is a cyclic number.

It is not a de Polignac number, because 312542303 - 2² = 312542299 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 (312542323) 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, 3811451 + ... + 3811532.

It is an arithmetic number, because the mean of its divisors is an integer number (80041332).

Almost surely, 2^312542303 is an apocalyptic number.

312542303 is a deficient number, since it is larger than the sum of its proper divisors (7623025).

312542303 is an equidigital number, since it uses as much as digits as its factorization.

312542303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623024.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 312542303 is about 17678.8659987003. The cubic root of 312542303 is about 678.6350235694.

Adding to 312542303 its reverse (303245213), we get a palindrome (615787516).

The spelling of 312542303 in words is "three hundred twelve million, five hundred forty-two thousand, three hundred three".