2121012313013 has 16 divisors (see below), whose sum is σ = 2321589479040. Its totient is φ = 1921729828800.

The previous prime is 2121012313003. The next prime is 2121012313039. The reversal of 2121012313013 is 3103132101212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2121012313013 - 2¹² = 2121012308917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121012313003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27565631 + ... + 27642467.

It is an arithmetic number, because the mean of its divisors is an integer number (145099342440).

Almost surely, 2^{2121012313013} is an apocalyptic number.

It is an amenable number.

2121012313013 is a deficient number, since it is larger than the sum of its proper divisors (200577166027).

2121012313013 is a wasteful number, since it uses less digits than its factorization.

2121012313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85228.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2121012313013 its reverse (3103132101212), we get a palindrome (5224144414225).

The spelling of 2121012313013 in words is "two trillion, one hundred twenty-one billion, twelve million, three hundred thirteen thousand, thirteen".