20212323353 has 2 divisors, whose sum is σ = 20212323354. Its totient is φ = 20212323352.

The previous prime is 20212323319. The next prime is 20212323379. The reversal of 20212323353 is 35332321202.

It is an a-pointer prime, because the next prime (20212323379) can be obtained adding 20212323353 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16577077504 + 3635245849 = 128752^2 + 60293^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212323353 - 2²⁰ = 20211274777 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212320353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106161676 + 10106161677.

It is an arithmetic number, because the mean of its divisors is an integer number (10106161677).

Almost surely, 2^20212323353 is an apocalyptic number.

It is an amenable number.

20212323353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212323353 is an equidigital number, since it uses as much as digits as its factorization.

20212323353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20212323353 its reverse (35332321202), we get a palindrome (55544644555).

The spelling of 20212323353 in words is "twenty billion, two hundred twelve million, three hundred twenty-three thousand, three hundred fifty-three".