12001321310 has 32 divisors (see below), whose sum is σ = 24806563200. Its totient is φ = 4134425760.

The previous prime is 12001321249. The next prime is 12001321327. The reversal of 12001321310 is 1312310021.

It is a super-2 number, since 2×12001321310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2869040 + ... + 2873219.

It is an arithmetic number, because the mean of its divisors is an integer number (775205100).

Almost surely, 2^12001321310 is an apocalyptic number.

12001321310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001321310 is an abundant number, since it is smaller than the sum of its proper divisors (12805241890).

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

12001321310 is a wasteful number, since it uses less digits than its factorization.

12001321310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742296.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12001321310 its reverse (1312310021), we get a palindrome (13313631331).

The spelling of 12001321310 in words is "twelve billion, one million, three hundred twenty-one thousand, three hundred ten".