2121112201313 has 4 divisors (see below), whose sum is σ = 2424128230080. Its totient is φ = 1818096172548.

The previous prime is 2121112201291. The next prime is 2121112201361. The reversal of 2121112201313 is 3131022111212.

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 2121112201313 - 2¹⁴ = 2121112184929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121112221313) 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, 151508014373 + ... + 151508014386.

It is an arithmetic number, because the mean of its divisors is an integer number (606032057520).

Almost surely, 2^{2121112201313} is an apocalyptic number.

It is an amenable number.

2121112201313 is a deficient number, since it is larger than the sum of its proper divisors (303016028767).

2121112201313 is an equidigital number, since it uses as much as digits as its factorization.

2121112201313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303016028766.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2121112201313 its reverse (3131022111212), we get a palindrome (5252134312525).

The spelling of 2121112201313 in words is "two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred one thousand, three hundred thirteen".