311213321320232 has 8 divisors (see below), whose sum is σ = 583524977475450. Its totient is φ = 155606660660112.

The previous prime is 311213321320229. The next prime is 311213321320267. The reversal of 311213321320232 is 232023123312113.

It can be written as a sum of positive squares in only one way, i.e., 308650997593156 + 2562323727076 = 17568466^2 + 1600726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 311213321320195 and 311213321320204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19450832582507 + ... + 19450832582522.

Almost surely, 2^{311213321320232} is an apocalyptic number.

It is an amenable number.

311213321320232 is a deficient number, since it is larger than the sum of its proper divisors (272311656155218).

311213321320232 is a wasteful number, since it uses less digits than its factorization.

311213321320232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38901665165035 (or 38901665165031 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 311213321320232 its reverse (232023123312113), we get a palindrome (543236444632345).

The spelling of 311213321320232 in words is "three hundred eleven trillion, two hundred thirteen billion, three hundred twenty-one million, three hundred twenty thousand, two hundred thirty-two".