12000010320 has 120 divisors (see below), whose sum is σ = 42670668456. Its totient is φ = 3011764224.

The previous prime is 12000010313. The next prime is 12000010327. The reversal of 12000010320 is 2301000021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12000010313) and next prime (12000010327).

It can be written as a sum of positive squares in 4 ways, for example, as 1756951056 + 10243059264 = 41916^2 + 101208^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000010327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477957 + ... + 502436.

Almost surely, 2^12000010320 is an apocalyptic number.

12000010320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000010320 is an abundant number, since it is smaller than the sum of its proper divisors (30670658136).

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

12000010320 is a wasteful number, since it uses less digits than its factorization.

12000010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980429 (or 980420 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12000010320 its reverse (2301000021), we get a palindrome (14301010341).

The spelling of 12000010320 in words is "twelve billion, ten thousand, three hundred twenty".