12011301320 has 64 divisors (see below), whose sum is σ = 27280471680. Its totient is φ = 4759382016.

The previous prime is 12011301311. The next prime is 12011301343. The reversal of 12011301320 is 2310311021.

It is a junction number, because it is equal to n+sod(n) for n = 12011301295 and 12011301304.

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, 2047832 + ... + 2053688.

It is an arithmetic number, because the mean of its divisors is an integer number (426257370).

Almost surely, 2^12011301320 is an apocalyptic number.

12011301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011301320 is an abundant number, since it is smaller than the sum of its proper divisors (15269170360).

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

12011301320 is a wasteful number, since it uses less digits than its factorization.

12011301320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342 (or 6338 counting only the distinct ones).

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

Adding to 12011301320 its reverse (2310311021), we get a palindrome (14321612341).

The spelling of 12011301320 in words is "twelve billion, eleven million, three hundred one thousand, three hundred twenty".