12312231133 has 8 divisors (see below), whose sum is σ = 12476921600. Its totient is φ = 12147761808.

The previous prime is 12312231109. The next prime is 12312231143. The reversal of 12312231133 is 33113221321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12312231133 - 2⁹ = 12312230621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312231143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58360 + ... + 167422.

It is an arithmetic number, because the mean of its divisors is an integer number (1559615200).

Almost surely, 2^12312231133 is an apocalyptic number.

It is an amenable number.

12312231133 is a deficient number, since it is larger than the sum of its proper divisors (164690467).

12312231133 is a wasteful number, since it uses less digits than its factorization.

12312231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110571.

The product of its digits is 648, while the sum is 22.

Adding to 12312231133 its reverse (33113221321), we get a palindrome (45425452454).

The spelling of 12312231133 in words is "twelve billion, three hundred twelve million, two hundred thirty-one thousand, one hundred thirty-three".