2121313013313 has 32 divisors (see below), whose sum is σ = 3152992832640. Its totient is φ = 1259620454400.

The previous prime is 2121313013299. The next prime is 2121313013357. The reversal of 2121313013313 is 3133103131212.

It is not a de Polignac number, because 2121313013313 - 2⁴ = 2121313013297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121313083313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1224970 + ... + 2396492.

It is an arithmetic number, because the mean of its divisors is an integer number (98531026020).

Almost surely, 2^{2121313013313} is an apocalyptic number.

It is an amenable number.

2121313013313 is a deficient number, since it is larger than the sum of its proper divisors (1031679819327).

2121313013313 is a wasteful number, since it uses less digits than its factorization.

2121313013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173169.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 2121313013313 its reverse (3133103131212), we get a palindrome (5254416144525).

The spelling of 2121313013313 in words is "two trillion, one hundred twenty-one billion, three hundred thirteen million, thirteen thousand, three hundred thirteen".