2102113404321 has 16 divisors (see below), whose sum is σ = 3219817428864. Its totient is φ = 1194983783424.

The previous prime is 2102113404317. The next prime is 2102113404361. The reversal of 2102113404321 is 1234043112012.

It is not a de Polignac number, because 2102113404321 - 2² = 2102113404317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102113404291 and 2102113404300.

It is not an unprimeable number, because it can be changed into a prime (2102113404361) 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, 259324026 + ... + 259332131.

It is an arithmetic number, because the mean of its divisors is an integer number (201238589304).

Almost surely, 2^{2102113404321} is an apocalyptic number.

2102113404321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2102113404321 is a deficient number, since it is larger than the sum of its proper divisors (1117704024543).

2102113404321 is a wasteful number, since it uses less digits than its factorization.

2102113404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518656360.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2102113404321 its reverse (1234043112012), we get a palindrome (3336156516333).

The spelling of 2102113404321 in words is "two trillion, one hundred two billion, one hundred thirteen million, four hundred four thousand, three hundred twenty-one".