1231133232312 has 24 divisors (see below), whose sum is σ = 3334319171040. Its totient is φ = 410377744080.

The previous prime is 1231133232229. The next prime is 1231133232319. The reversal of 1231133232312 is 2132323311321.

1231133232312 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 1 + 332 + 323 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231133232319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8549536264 + ... + 8549536407.

It is an arithmetic number, because the mean of its divisors is an integer number (138929965460).

Almost surely, 2^{1231133232312} is an apocalyptic number.

1231133232312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231133232312 is an abundant number, since it is smaller than the sum of its proper divisors (2103185938728).

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

1231133232312 is a wasteful number, since it uses less digits than its factorization.

1231133232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17099072683 (or 17099072676 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1231133232312 its reverse (2132323311321), we get a palindrome (3363456543633).

The spelling of 1231133232312 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-three million, two hundred thirty-two thousand, three hundred twelve".