311212203313 has 8 divisors (see below), whose sum is σ = 345258531360. Its totient is φ = 278124926880.

The previous prime is 311212203311. The next prime is 311212203317. The reversal of 311212203313 is 313302212113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311212203313 - 2¹ = 311212203311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311212203311) 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 7 ways as a sum of consecutive naturals, for example, 239762220 + ... + 239763517.

It is an arithmetic number, because the mean of its divisors is an integer number (43157316420).

Almost surely, 2^311212203313 is an apocalyptic number.

It is an amenable number.

311212203313 is a deficient number, since it is larger than the sum of its proper divisors (34046328047).

311212203313 is a wasteful number, since it uses less digits than its factorization.

311212203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479525807.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 311212203313 its reverse (313302212113), we get a palindrome (624514415426).

The spelling of 311212203313 in words is "three hundred eleven billion, two hundred twelve million, two hundred three thousand, three hundred thirteen".