12311034533 has 12 divisors (see below), whose sum is σ = 14708083488. Its totient is φ = 10093515960.

The previous prime is 12311034529. The next prime is 12311034583. The reversal of 12311034533 is 33543011321.

It is not a de Polignac number, because 12311034533 - 2² = 12311034529 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311034503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1658603 + ... + 1666008.

It is an arithmetic number, because the mean of its divisors is an integer number (1225673624).

Almost surely, 2^12311034533 is an apocalyptic number.

It is an amenable number.

12311034533 is a deficient number, since it is larger than the sum of its proper divisors (2397048955).

12311034533 is an equidigital number, since it uses as much as digits as its factorization.

12311034533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324664 (or 3324641 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 12311034533 its reverse (33543011321), we get a palindrome (45854045854).

The spelling of 12311034533 in words is "twelve billion, three hundred eleven million, thirty-four thousand, five hundred thirty-three".