2213042123 has 4 divisors (see below), whose sum is σ = 2225834448. Its totient is φ = 2200249800.

The previous prime is 2213042107. The next prime is 2213042131. The reversal of 2213042123 is 3212403122.

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 2213042123 - 2⁴ = 2213042107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213042095 and 2213042104.

It is not an unprimeable number, because it can be changed into a prime (2213042323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6395903 + ... + 6396248.

It is an arithmetic number, because the mean of its divisors is an integer number (556458612).

Almost surely, 2^2213042123 is an apocalyptic number.

2213042123 is a deficient number, since it is larger than the sum of its proper divisors (12792325).

2213042123 is a wasteful number, since it uses less digits than its factorization.

2213042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12792324.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2213042123 is about 47042.9816550779. The cubic root of 2213042123 is about 1303.1564566075.

Adding to 2213042123 its reverse (3212403122), we get a palindrome (5425445245).

The spelling of 2213042123 in words is "two billion, two hundred thirteen million, forty-two thousand, one hundred twenty-three".