12021100313 has 4 divisors (see below), whose sum is σ = 12023319168. Its totient is φ = 12018881460.

The previous prime is 12021100309. The next prime is 12021100321. The reversal of 12021100313 is 31300112021.

12021100313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31300112021 = 45659 ⋅685519.

It is a cyclic number.

It is not a de Polignac number, because 12021100313 - 2² = 12021100309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021100513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101281 + ... + 1112142.

It is an arithmetic number, because the mean of its divisors is an integer number (3005829792).

Almost surely, 2^12021100313 is an apocalyptic number.

It is an amenable number.

12021100313 is a deficient number, since it is larger than the sum of its proper divisors (2218855).

12021100313 is an equidigital number, since it uses as much as digits as its factorization.

12021100313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218854.

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

Adding to 12021100313 its reverse (31300112021), we get a palindrome (43321212334).

The spelling of 12021100313 in words is "twelve billion, twenty-one million, one hundred thousand, three hundred thirteen".