2123356 has 12 divisors (see below), whose sum is σ = 3816568. Its totient is φ = 1032912.

The previous prime is 2123353. The next prime is 2123357. The reversal of 2123356 is 6533212.

It is a d-powerful number, because it can be written as 2¹² + 1 + 2²⁰ + 3¹² + 3¹² + 5² + 6⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123353) 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, 7026 + ... + 7321.

2^2123356 is an apocalyptic number.

It is an amenable number.

2123356 is a deficient number, since it is larger than the sum of its proper divisors (1693212).

2123356 is a wasteful number, since it uses less digits than its factorization.

2123356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14388 (or 14386 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 2123356 is about 1457.1739772587. The cubic root of 2123356 is about 128.5309165720.

Adding to 2123356 its reverse (6533212), we get a palindrome (8656568).

The spelling of 2123356 in words is "two million, one hundred twenty-three thousand, three hundred fifty-six".