20223113211121 has 2 divisors, whose sum is σ = 20223113211122. Its totient is φ = 20223113211120.

The previous prime is 20223113211113. The next prime is 20223113211163. The reversal of 20223113211121 is 12111231132202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13425042560400 + 6798070650721 = 3664020^2 + 2607311^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223113211121 - 2³ = 20223113211113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20223113211092 and 20223113211101.

It is not a weakly prime, because it can be changed into another prime (20223113212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111556605560 + 10111556605561.

It is an arithmetic number, because the mean of its divisors is an integer number (10111556605561).

Almost surely, 2^{20223113211121} is an apocalyptic number.

It is an amenable number.

20223113211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223113211121 is an equidigital number, since it uses as much as digits as its factorization.

20223113211121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 20223113211121 its reverse (12111231132202), we get a palindrome (32334344343323).

The spelling of 20223113211121 in words is "twenty trillion, two hundred twenty-three billion, one hundred thirteen million, two hundred eleven thousand, one hundred twenty-one".