20212330253 has 2 divisors, whose sum is σ = 20212330254. Its totient is φ = 20212330252.

The previous prime is 20212330247. The next prime is 20212330309. The reversal of 20212330253 is 35203321202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17826789289 + 2385540964 = 133517^2 + 48842^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212330253 - 2¹⁸ = 20212068109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212330223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106165126 + 10106165127.

It is an arithmetic number, because the mean of its divisors is an integer number (10106165127).

Almost surely, 2^20212330253 is an apocalyptic number.

It is an amenable number.

20212330253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212330253 is an equidigital number, since it uses as much as digits as its factorization.

20212330253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20212330253 its reverse (35203321202), we get a palindrome (55415651455).

The spelling of 20212330253 in words is "twenty billion, two hundred twelve million, three hundred thirty thousand, two hundred fifty-three".