2113123011023 has 16 divisors (see below), whose sum is σ = 2158552281600. Its totient is φ = 2067901704960.

The previous prime is 2113123011017. The next prime is 2113123011059. The reversal of 2113123011023 is 3201103213112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2113123011023 - 2⁴ = 2113123011007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113123010986 and 2113123011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113128011023) 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 15 ways as a sum of consecutive naturals, for example, 200120018 + ... + 200130576.

It is an arithmetic number, because the mean of its divisors is an integer number (134909517600).

Almost surely, 2^{2113123011023} is an apocalyptic number.

2113123011023 is a deficient number, since it is larger than the sum of its proper divisors (45429270577).

2113123011023 is a wasteful number, since it uses less digits than its factorization.

2113123011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2113123011023 its reverse (3201103213112), we get a palindrome (5314226224135).

The spelling of 2113123011023 in words is "two trillion, one hundred thirteen billion, one hundred twenty-three million, eleven thousand, twenty-three".