20212323 has 16 divisors (see below), whose sum is σ = 27841536. Its totient is φ = 13033440.

The previous prime is 20212319. The next prime is 20212327. The reversal of 20212323 is 32321202.

It is an interprime number because it is at equal distance from previous prime (20212319) and next prime (20212327).

It is not a de Polignac number, because 20212323 - 2² = 20212319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20212327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22990 + ... + 23852.

It is an arithmetic number, because the mean of its divisors is an integer number (1740096).

Almost surely, 2^20212323 is an apocalyptic number.

20212323 is a deficient number, since it is larger than the sum of its proper divisors (7629213).

20212323 is a wasteful number, since it uses less digits than its factorization.

20212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20212323 is about 4495.8117175878. The cubic root of 20212323 is about 272.3989379186.

Adding to 20212323 its reverse (32321202), we get a palindrome (52533525).

The spelling of 20212323 in words is "twenty million, two hundred twelve thousand, three hundred twenty-three".