311222310132 has 72 divisors (see below), whose sum is σ = 745500637728. Its totient is φ = 101051237120.

The previous prime is 311222310097. The next prime is 311222310151. The reversal of 311222310132 is 231013222113.

It is a junction number, because it is equal to n+sod(n) for n = 311222310099 and 311222310108.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13160503 + ... + 13184129.

It is an arithmetic number, because the mean of its divisors is an integer number (10354175524).

Almost surely, 2^311222310132 is an apocalyptic number.

It is an amenable number.

311222310132 is an abundant number, since it is smaller than the sum of its proper divisors (434278327596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311222310132 is a wasteful number, since it uses less digits than its factorization.

311222310132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24369 (or 24326 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 311222310132 its reverse (231013222113), we get a palindrome (542235532245).

The spelling of 311222310132 in words is "three hundred eleven billion, two hundred twenty-two million, three hundred ten thousand, one hundred thirty-two".