316221540311 has 4 divisors (see below), whose sum is σ = 316222690824. Its totient is φ = 316220389800.

The previous prime is 316221540307. The next prime is 316221540317. The reversal of 316221540311 is 113045122613.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 316221540311 - 2² = 316221540307 is a prime.

It is a super-2 number, since 2×316221540311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316221540317) 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 3 ways as a sum of consecutive naturals, for example, 105776 + ... + 802266.

It is an arithmetic number, because the mean of its divisors is an integer number (79055672706).

Almost surely, 2^316221540311 is an apocalyptic number.

316221540311 is a deficient number, since it is larger than the sum of its proper divisors (1150513).

316221540311 is an equidigital number, since it uses as much as digits as its factorization.

316221540311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150512.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 316221540311 its reverse (113045122613), we get a palindrome (429266662924).

The spelling of 316221540311 in words is "three hundred sixteen billion, two hundred twenty-one million, five hundred forty thousand, three hundred eleven".