2103211213213 has 6 divisors (see below), whose sum is σ = 2311794143582. Its totient is φ = 1912010193720.

The previous prime is 2103211213121. The next prime is 2103211213253. The reversal of 2103211213213 is 3123121123012.

It can be written as a sum of positive squares in only one way, i.e., 1649524098244 + 453687114969 = 1284338^2 + 673563^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2103211213213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103211213253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8690955306 + ... + 8690955547.

Almost surely, 2^{2103211213213} is an apocalyptic number.

It is an amenable number.

2103211213213 is a deficient number, since it is larger than the sum of its proper divisors (208582930369).

2103211213213 is a wasteful number, since it uses less digits than its factorization.

2103211213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381910875 (or 17381910864 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2103211213213 its reverse (3123121123012), we get a palindrome (5226332336225).

The spelling of 2103211213213 in words is "two trillion, one hundred three billion, two hundred eleven million, two hundred thirteen thousand, two hundred thirteen".