12320100211121 has 4 divisors (see below), whose sum is σ = 12320176671744. Its totient is φ = 12320023750500.

The previous prime is 12320100211103. The next prime is 12320100211231. The reversal of 12320100211121 is 12111200102321.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-12320100211121 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 12320100211121.

It is not an unprimeable number, because it can be changed into a prime (12320100211021) 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, 37988105 + ... + 38311046.

It is an arithmetic number, because the mean of its divisors is an integer number (3080044167936).

Almost surely, 2^{12320100211121} is an apocalyptic number.

It is an amenable number.

12320100211121 is a deficient number, since it is larger than the sum of its proper divisors (76460623).

12320100211121 is an equidigital number, since it uses as much as digits as its factorization.

12320100211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76460622.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12320100211121 its reverse (12111200102321), we get a palindrome (24431300313442).

The spelling of 12320100211121 in words is "twelve trillion, three hundred twenty billion, one hundred million, two hundred eleven thousand, one hundred twenty-one".