2100201001321 has 4 divisors (see below), whose sum is σ = 2102363928144. Its totient is φ = 2098038074500.

The previous prime is 2100201001193. The next prime is 2100201001331. The reversal of 2100201001321 is 1231001020012.

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 2100201001321 - 2⁷ = 2100201001193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100201001331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081461955 + ... + 1081463896.

It is an arithmetic number, because the mean of its divisors is an integer number (525590982036).

Almost surely, 2^{2100201001321} is an apocalyptic number.

It is an amenable number.

2100201001321 is a deficient number, since it is larger than the sum of its proper divisors (2162926823).

2100201001321 is an equidigital number, since it uses as much as digits as its factorization.

2100201001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162926822.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2100201001321 its reverse (1231001020012), we get a palindrome (3331202021333).

The spelling of 2100201001321 in words is "two trillion, one hundred billion, two hundred one million, one thousand, three hundred twenty-one".