313011210131999 has 4 divisors (see below), whose sum is σ = 318917082021336. Its totient is φ = 307105338242664.

The previous prime is 313011210131929. The next prime is 313011210132013. The reversal of 313011210131999 is 999131012110313.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313011210131999 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 (313011210131909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952935944589 + ... + 2952935944694.

It is an arithmetic number, because the mean of its divisors is an integer number (79729270505334).

Almost surely, 2^{313011210131999} is an apocalyptic number.

313011210131999 is a deficient number, since it is larger than the sum of its proper divisors (5905871889337).

313011210131999 is an equidigital number, since it uses as much as digits as its factorization.

313011210131999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905871889336.

The product of its (nonzero) digits is 39366, while the sum is 44.

The spelling of 313011210131999 in words is "three hundred thirteen trillion, eleven billion, two hundred ten million, one hundred thirty-one thousand, nine hundred ninety-nine".