2113101001321 has 4 divisors (see below), whose sum is σ = 2113447360644. Its totient is φ = 2112754642000.

The previous prime is 2113101001279. The next prime is 2113101001337. The reversal of 2113101001321 is 1231001013112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 881420545600 + 1231680455721 = 938840^2 + 1109811^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113101001321 - 2¹⁷ = 2113100870249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113101001295 and 2113101001304.

It is not an unprimeable number, because it can be changed into a prime (2113101004321) 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, 173170510 + ... + 173182711.

It is an arithmetic number, because the mean of its divisors is an integer number (528361840161).

Almost surely, 2^{2113101001321} is an apocalyptic number.

It is an amenable number.

2113101001321 is a deficient number, since it is larger than the sum of its proper divisors (346359323).

2113101001321 is an equidigital number, since it uses as much as digits as its factorization.

2113101001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346359322.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2113101001321 its reverse (1231001013112), we get a palindrome (3344102014433).

The spelling of 2113101001321 in words is "two trillion, one hundred thirteen billion, one hundred one million, one thousand, three hundred twenty-one".