12331002132 has 18 divisors (see below), whose sum is σ = 31170033258. Its totient is φ = 4110334032.

The previous prime is 12331002083. The next prime is 12331002157. The reversal of 12331002132 is 23120013321.

It can be written as a sum of positive squares in only one way, i.e., 12153739536 + 177262596 = 110244^2 + 13314^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12331002132² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171263883 + ... + 171263954.

Almost surely, 2^12331002132 is an apocalyptic number.

12331002132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12331002132 is an abundant number, since it is smaller than the sum of its proper divisors (18839031126).

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

12331002132 is a wasteful number, since it uses less digits than its factorization.

12331002132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342527847 (or 342527842 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12331002132 its reverse (23120013321), we get a palindrome (35451015453).

The spelling of 12331002132 in words is "twelve billion, three hundred thirty-one million, two thousand, one hundred thirty-two".