2100375258321 has 16 divisors (see below), whose sum is σ = 2890879538688. Its totient is φ = 1355061840000.

The previous prime is 2100375258253. The next prime is 2100375258341. The reversal of 2100375258321 is 1238525730012.

It is not a de Polignac number, because 2100375258321 - 2¹⁰ = 2100375257297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100375258321.

It is not an unprimeable number, because it can be changed into a prime (2100375258341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10033495 + ... + 10240691.

It is an arithmetic number, because the mean of its divisors is an integer number (180679971168).

Almost surely, 2^{2100375258321} is an apocalyptic number.

It is an amenable number.

2100375258321 is a deficient number, since it is larger than the sum of its proper divisors (790504280367).

2100375258321 is a wasteful number, since it uses less digits than its factorization.

2100375258321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316232.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 2100375258321 in words is "two trillion, one hundred billion, three hundred seventy-five million, two hundred fifty-eight thousand, three hundred twenty-one".