12231321101 has 4 divisors (see below), whose sum is σ = 12231554400. Its totient is φ = 12231087804.

The previous prime is 12231321059. The next prime is 12231321103. The reversal of 12231321101 is 10112313221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12231321101 - 2¹⁰ = 12231320077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12231321101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231321103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690 + ... + 156428.

It is an arithmetic number, because the mean of its divisors is an integer number (3057888600).

Almost surely, 2^12231321101 is an apocalyptic number.

It is an amenable number.

12231321101 is a deficient number, since it is larger than the sum of its proper divisors (233299).

12231321101 is an equidigital number, since it uses as much as digits as its factorization.

12231321101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233298.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12231321101 its reverse (10112313221), we get a palindrome (22343634322).

The spelling of 12231321101 in words is "twelve billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred one".