2113211030123 has 4 divisors (see below), whose sum is σ = 2162355472728. Its totient is φ = 2064066587520.

The previous prime is 2113211030093. The next prime is 2113211030141. The reversal of 2113211030123 is 3210301123112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2113211030123 - 2³⁴ = 2096031160939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113211030095 and 2113211030104.

It is not an unprimeable number, because it can be changed into a prime (2113211030423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24572221238 + ... + 24572221323.

It is an arithmetic number, because the mean of its divisors is an integer number (540588868182).

Almost surely, 2^{2113211030123} is an apocalyptic number.

2113211030123 is a deficient number, since it is larger than the sum of its proper divisors (49144442605).

2113211030123 is an equidigital number, since it uses as much as digits as its factorization.

2113211030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49144442604.

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

Adding to 2113211030123 its reverse (3210301123112), we get a palindrome (5323512153235).

The spelling of 2113211030123 in words is "two trillion, one hundred thirteen billion, two hundred eleven million, thirty thousand, one hundred twenty-three".