12102312320 has 64 divisors (see below), whose sum is σ = 33065258400. Its totient is φ = 4149362688.

The previous prime is 12102312269. The next prime is 12102312337. The reversal of 12102312320 is 2321320121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346225 + ... + 1355184.

Almost surely, 2^12102312320 is an apocalyptic number.

12102312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102312320 is an abundant number, since it is smaller than the sum of its proper divisors (20962946080).

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

12102312320 is an equidigital number, since it uses as much as digits as its factorization.

12102312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701435 (or 2701423 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12102312320 its reverse (2321320121), we get a palindrome (14423632441).

The spelling of 12102312320 in words is "twelve billion, one hundred two million, three hundred twelve thousand, three hundred twenty".