1231322123332 has 24 divisors (see below), whose sum is σ = 2479172068800. Its totient is φ = 524167805280.

The previous prime is 1231322123321. The next prime is 1231322123357. The reversal of 1231322123332 is 2333212231321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1231322123332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147565594 + ... + 147573937.

It is an arithmetic number, because the mean of its divisors is an integer number (103298836200).

Almost surely, 2^{1231322123332} is an apocalyptic number.

It is an amenable number.

1231322123332 is an abundant number, since it is smaller than the sum of its proper divisors (1247849945468).

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

1231322123332 is a wasteful number, since it uses less digits than its factorization.

1231322123332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295139691 (or 295139689 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

Adding to 1231322123332 its reverse (2333212231321), we get a palindrome (3564534354653).

The spelling of 1231322123332 in words is "one trillion, two hundred thirty-one billion, three hundred twenty-two million, one hundred twenty-three thousand, three hundred thirty-two".