311223133132 has 6 divisors (see below), whose sum is σ = 544640482988. Its totient is φ = 155611566564.

The previous prime is 311223133099. The next prime is 311223133141. The reversal of 311223133132 is 231331322113.

It is a super-2 number, since 2×311223133132² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311223133097 and 311223133106.

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 as a sum of consecutive naturals, namely, 38902891638 + ... + 38902891645.

Almost surely, 2^311223133132 is an apocalyptic number.

It is an amenable number.

311223133132 is a deficient number, since it is larger than the sum of its proper divisors (233417349856).

311223133132 is a wasteful number, since it uses less digits than its factorization.

311223133132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77805783287 (or 77805783285 counting only the distinct ones).

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

Adding to 311223133132 its reverse (231331322113), we get a palindrome (542554455245).

The spelling of 311223133132 in words is "three hundred eleven billion, two hundred twenty-three million, one hundred thirty-three thousand, one hundred thirty-two".