12310132320 has 144 divisors (see below), whose sum is σ = 42064233120. Its totient is φ = 3278333952.

The previous prime is 12310132313. The next prime is 12310132337. The reversal of 12310132320 is 2323101321.

12310132320 is a `hidden beast` number, since 1 + 2 + 310 + 1 + 32 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 12310132293 and 12310132302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1159677 + ... + 1170243.

It is an arithmetic number, because the mean of its divisors is an integer number (292112730).

Almost surely, 2^12310132320 is an apocalyptic number.

12310132320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310132320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21032116560).

12310132320 is an abundant number, since it is smaller than the sum of its proper divisors (29754100800).

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

12310132320 is a wasteful number, since it uses less digits than its factorization.

12310132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397 (or 11386 counting only the distinct ones).

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

Adding to 12310132320 its reverse (2323101321), we get a palindrome (14633233641).

The spelling of 12310132320 in words is "twelve billion, three hundred ten million, one hundred thirty-two thousand, three hundred twenty".