12102011231321 has 16 divisors (see below), whose sum is σ = 13297994918208. Its totient is φ = 10922236651200.

The previous prime is 12102011231287. The next prime is 12102011231383. The reversal of 12102011231321 is 12313211020121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102011231321 is a prime.

It is a super-3 number, since 3×12102011231321³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102011231293 and 12102011231302.

It is not an unprimeable number, because it can be changed into a prime (12102011231021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5058155 + ... + 7056128.

It is an arithmetic number, because the mean of its divisors is an integer number (831124682388).

Almost surely, 2^{12102011231321} is an apocalyptic number.

12102011231321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12102011231321 is a deficient number, since it is larger than the sum of its proper divisors (1195983686887).

12102011231321 is a wasteful number, since it uses less digits than its factorization.

12102011231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12114952.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12102011231321 its reverse (12313211020121), we get a palindrome (24415222251442).

The spelling of 12102011231321 in words is "twelve trillion, one hundred two billion, eleven million, two hundred thirty-one thousand, three hundred twenty-one".