2113123013101 has 4 divisors (see below), whose sum is σ = 2114336755804. Its totient is φ = 2111909270400.

The previous prime is 2113123013021. The next prime is 2113123013117. The reversal of 2113123013101 is 1013103213112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95032859076 + 2018090154025 = 308274^2 + 1420595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113123013101 - 2⁹ = 2113123012589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113123013161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606868740 + ... + 606872221.

It is an arithmetic number, because the mean of its divisors is an integer number (528584188951).

Almost surely, 2^{2113123013101} is an apocalyptic number.

It is an amenable number.

2113123013101 is a deficient number, since it is larger than the sum of its proper divisors (1213742703).

2113123013101 is a wasteful number, since it uses less digits than its factorization.

2113123013101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213742702.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2113123013101 its reverse (1013103213112), we get a palindrome (3126226226213).

The spelling of 2113123013101 in words is "two trillion, one hundred thirteen billion, one hundred twenty-three million, thirteen thousand, one hundred one".