21001112000113 has 32 divisors (see below), whose sum is σ = 24583983823872. Its totient is φ = 17564763384000.

The previous prime is 21001112000111. The next prime is 21001112000117. The reversal of 21001112000113 is 31100021110012.

It is a happy number.

It is not a de Polignac number, because 21001112000113 - 2¹ = 21001112000111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21001112000093 and 21001112000102.

It is not an unprimeable number, because it can be changed into a prime (21001112000111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2062769883 + ... + 2062780063.

It is an arithmetic number, because the mean of its divisors is an integer number (768249494496).

Almost surely, 2^{21001112000113} is an apocalyptic number.

It is an amenable number.

21001112000113 is a deficient number, since it is larger than the sum of its proper divisors (3582871823759).

21001112000113 is a wasteful number, since it uses less digits than its factorization.

21001112000113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16405.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 21001112000113 its reverse (31100021110012), we get a palindrome (52101133110125).

The spelling of 21001112000113 in words is "twenty-one trillion, one billion, one hundred twelve million, one hundred thirteen", and thus it is an aban number.