2121411043013 has 2 divisors, whose sum is σ = 2121411043014. Its totient is φ = 2121411043012.

The previous prime is 2121411043001. The next prime is 2121411043051. The reversal of 2121411043013 is 3103401141212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1757514958369 + 363896084644 = 1325713^2 + 603238^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121411043013 - 2⁸ = 2121411042757 is a prime.

It is a super-2 number, since 2×2121411043013² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2121411043013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121411043613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060705521506 + 1060705521507.

It is an arithmetic number, because the mean of its divisors is an integer number (1060705521507).

Almost surely, 2^{2121411043013} is an apocalyptic number.

It is an amenable number.

2121411043013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121411043013 is an equidigital number, since it uses as much as digits as its factorization.

2121411043013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 2121411043013 its reverse (3103401141212), we get a palindrome (5224812184225).

The spelling of 2121411043013 in words is "two trillion, one hundred twenty-one billion, four hundred eleven million, forty-three thousand, thirteen".