2113201123 has 4 divisors (see below), whose sum is σ = 2305310328. Its totient is φ = 1921091920.

The previous prime is 2113201121. The next prime is 2113201141. The reversal of 2113201123 is 3211023112.

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

It is not a de Polignac number, because 2113201123 - 2¹ = 2113201121 is a prime.

It is a super-2 number, since 2×2113201123² = 8931237972496922258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113201097 and 2113201106.

It is not an unprimeable number, because it can be changed into a prime (2113201121) 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, 96054586 + ... + 96054607.

It is an arithmetic number, because the mean of its divisors is an integer number (576327582).

Almost surely, 2^2113201123 is an apocalyptic number.

2113201123 is a deficient number, since it is larger than the sum of its proper divisors (192109205).

2113201123 is a wasteful number, since it uses less digits than its factorization.

2113201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192109204.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2113201123 is about 45969.5673571114. The cubic root of 2113201123 is about 1283.2569083328.

Adding to 2113201123 its reverse (3211023112), we get a palindrome (5324224235).

The spelling of 2113201123 in words is "two billion, one hundred thirteen million, two hundred one thousand, one hundred twenty-three".