2101111322013 has 24 divisors (see below), whose sum is σ = 3316243226400. Its totient is φ = 1271323438560.

The previous prime is 2101111321993. The next prime is 2101111322027. The reversal of 2101111322013 is 3102231111012.

It is a de Polignac number, because none of the positive numbers 2^k-2101111322013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101111322213) 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, 17250363 + ... + 17371736.

It is an arithmetic number, because the mean of its divisors is an integer number (138176801100).

Almost surely, 2^{2101111322013} is an apocalyptic number.

It is an amenable number.

2101111322013 is a deficient number, since it is larger than the sum of its proper divisors (1215131904387).

2101111322013 is a wasteful number, since it uses less digits than its factorization.

2101111322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34622729 (or 34622726 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2101111322013 its reverse (3102231111012), we get a palindrome (5203342433025).

The spelling of 2101111322013 in words is "two trillion, one hundred one billion, one hundred eleven million, three hundred twenty-two thousand, thirteen".