2321120221513 has 4 divisors (see below), whose sum is σ = 2321155767760. Its totient is φ = 2321084675268.

The previous prime is 2321120221507. The next prime is 2321120221543. The reversal of 2321120221513 is 3151220211232.

2321120221513 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.

It is a cyclic number.

It is not a de Polignac number, because 2321120221513 - 2⁵ = 2321120221481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321120221543) 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, 17674995 + ... + 17805832.

It is an arithmetic number, because the mean of its divisors is an integer number (580288941940).

Almost surely, 2^{2321120221513} is an apocalyptic number.

It is an amenable number.

2321120221513 is a deficient number, since it is larger than the sum of its proper divisors (35546247).

2321120221513 is an equidigital number, since it uses as much as digits as its factorization.

2321120221513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35546246.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 2321120221513 its reverse (3151220211232), we get a palindrome (5472340432745).

The spelling of 2321120221513 in words is "two trillion, three hundred twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, five hundred thirteen".