312311302303 has 36 divisors (see below), whose sum is σ = 430048599960. Its totient is φ = 224639442720.

The previous prime is 312311302291. The next prime is 312311302363. The reversal of 312311302303 is 303203113213.

It is a de Polignac number, because none of the positive numbers 2^k-312311302303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311302363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1948893 + ... + 2103046.

Almost surely, 2^312311302303 is an apocalyptic number.

312311302303 is a deficient number, since it is larger than the sum of its proper divisors (117737297657).

312311302303 is a wasteful number, since it uses less digits than its factorization.

312311302303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051988 (or 4051970 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 312311302303 its reverse (303203113213), we get a palindrome (615514415516).

The spelling of 312311302303 in words is "three hundred twelve billion, three hundred eleven million, three hundred two thousand, three hundred three".