312331211003 has 20 divisors (see below), whose sum is σ = 365515038480. Its totient is φ = 266867297424.

The previous prime is 312331210969. The next prime is 312331211021. The reversal of 312331211003 is 300112133213.

It is not a de Polignac number, because 312331211003 - 2¹² = 312331206907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312331211053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 555938 + ... + 966296.

It is an arithmetic number, because the mean of its divisors is an integer number (18275751924).

Almost surely, 2^312331211003 is an apocalyptic number.

312331211003 is a deficient number, since it is larger than the sum of its proper divisors (53183827477).

312331211003 is an frugal number, since it uses more digits than its factorization.

312331211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410704 (or 410683 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 312331211003 its reverse (300112133213), we get a palindrome (612443344216).

The spelling of 312331211003 in words is "three hundred twelve billion, three hundred thirty-one million, two hundred eleven thousand, three".