12331321134 has 32 divisors (see below), whose sum is σ = 27182082816. Its totient is φ = 3698238720.

The previous prime is 12331321133. The next prime is 12331321153. The reversal of 12331321134 is 43112313321.

It is a super-2 number, since 2×12331321134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331321133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956682 + ... + 969485.

It is an arithmetic number, because the mean of its divisors is an integer number (849440088).

Almost surely, 2^12331321134 is an apocalyptic number.

12331321134 is an abundant number, since it is smaller than the sum of its proper divisors (14850761682).

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

12331321134 is a wasteful number, since it uses less digits than its factorization.

12331321134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926280.

The product of its digits is 1296, while the sum is 24.

Adding to 12331321134 its reverse (43112313321), we get a palindrome (55443634455).

The spelling of 12331321134 in words is "twelve billion, three hundred thirty-one million, three hundred twenty-one thousand, one hundred thirty-four".