311216720326 has 8 divisors (see below), whose sum is σ = 468762114744. Its totient is φ = 154962682080.

The previous prime is 311216720293. The next prime is 311216720357. The reversal of 311216720326 is 623027612113.

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

It is a junction number, because it is equal to n+sod(n) for n = 311216720291 and 311216720300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322838440 + ... + 322839403.

It is an arithmetic number, because the mean of its divisors is an integer number (58595264343).

Almost surely, 2^311216720326 is an apocalyptic number.

311216720326 is a deficient number, since it is larger than the sum of its proper divisors (157545394418).

311216720326 is a wasteful number, since it uses less digits than its factorization.

311216720326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645678086.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 311216720326 in words is "three hundred eleven billion, two hundred sixteen million, seven hundred twenty thousand, three hundred twenty-six".