311313322132 has 18 divisors (see below), whose sum is σ = 548746059498. Its totient is φ = 154536790608.

The previous prime is 311313322079. The next prime is 311313322153. The reversal of 311313322132 is 231223313113.

It can be written as a sum of positive squares in only one way, i.e., 262221829776 + 49091492356 = 512076^2 + 221566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311313322097 and 311313322106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1936803 + ... + 2091370.

Almost surely, 2^311313322132 is an apocalyptic number.

It is an amenable number.

311313322132 is a deficient number, since it is larger than the sum of its proper divisors (237432737366).

311313322132 is a wasteful number, since it uses less digits than its factorization.

311313322132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028455 (or 4028314 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 311313322132 its reverse (231223313113), we get a palindrome (542536635245).

The spelling of 311313322132 in words is "three hundred eleven billion, three hundred thirteen million, three hundred twenty-two thousand, one hundred thirty-two".