2121310011213 has 24 divisors (see below), whose sum is σ = 3229283959200. Its totient is φ = 1338154612704.

The previous prime is 2121310011199. The next prime is 2121310011313. The reversal of 2121310011213 is 3121100131212.

It is not a de Polignac number, because 2121310011213 - 2²⁵ = 2121276456781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121310011313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7358778 + ... + 7641611.

It is an arithmetic number, because the mean of its divisors is an integer number (134553498300).

Almost surely, 2^{2121310011213} is an apocalyptic number.

It is an amenable number.

2121310011213 is a deficient number, since it is larger than the sum of its proper divisors (1107973947987).

2121310011213 is a wasteful number, since it uses less digits than its factorization.

2121310011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001241 (or 15001238 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2121310011213 its reverse (3121100131212), we get a palindrome (5242410142425).

The spelling of 2121310011213 in words is "two trillion, one hundred twenty-one billion, three hundred ten million, eleven thousand, two hundred thirteen".