21112102001013 has 8 divisors (see below), whose sum is σ = 28488619567968. Its totient is φ = 13905159550704.

The previous prime is 21112102000993. The next prime is 21112102001069. The reversal of 21112102001013 is 31010020121112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-21112102001013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21112102000983 and 21112102001001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112102001083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42393778870 + ... + 42393779367.

It is an arithmetic number, because the mean of its divisors is an integer number (3561077445996).

Almost surely, 2^{21112102001013} is an apocalyptic number.

It is an amenable number.

21112102001013 is a deficient number, since it is larger than the sum of its proper divisors (7376517566955).

21112102001013 is an equidigital number, since it uses as much as digits as its factorization.

21112102001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84787558323.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21112102001013 its reverse (31010020121112), we get a palindrome (52122122122125).

The spelling of 21112102001013 in words is "twenty-one trillion, one hundred twelve billion, one hundred two million, one thousand, thirteen".