12311211332 has 12 divisors (see below), whose sum is σ = 24622422720. Its totient is φ = 5276233416.

The previous prime is 12311211293. The next prime is 12311211347. The reversal of 12311211332 is 23311211321.

It is a happy number.

12311211332 is an admirable number.

It is a super-2 number, since 2×12311211332² (a number of 21 digits) contains 22 as substring.

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, 219843032 + ... + 219843087.

It is an arithmetic number, because the mean of its divisors is an integer number (2051868560).

Almost surely, 2^12311211332 is an apocalyptic number.

It is an amenable number.

12311211332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12311211332 is a wasteful number, since it uses less digits than its factorization.

12311211332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439686130 (or 439686128 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 12311211332 its reverse (23311211321), we get a palindrome (35622422653).

The spelling of 12311211332 in words is "twelve billion, three hundred eleven million, two hundred eleven thousand, three hundred thirty-two".