2123356533213 has 24 divisors (see below), whose sum is σ = 2892983960160. Its totient is φ = 1385297694880.

The previous prime is 2123356533163. The next prime is 2123356533227. The reversal of 2123356533213 is 3123356533212.

It is not a de Polignac number, because 2123356533213 - 2¹⁶ = 2123356467677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123356533913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118554703 + ... + 118572611.

It is an arithmetic number, because the mean of its divisors is an integer number (120540998340).

Almost surely, 2^{2123356533213} is an apocalyptic number.

It is an amenable number.

2123356533213 is a deficient number, since it is larger than the sum of its proper divisors (769627426947).

2123356533213 is a wasteful number, since it uses less digits than its factorization.

2123356533213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35897 (or 35850 counting only the distinct ones).

The product of its digits is 291600, while the sum is 39.

Subtracting 2123356533213 from its reverse (3123356533212), we obtain a palindrome (999999999999).

The spelling of 2123356533213 in words is "two trillion, one hundred twenty-three billion, three hundred fifty-six million, five hundred thirty-three thousand, two hundred thirteen".