2323020203221 has 2 divisors, whose sum is σ = 2323020203222. Its totient is φ = 2323020203220.

The previous prime is 2323020203191. The next prime is 2323020203243. The reversal of 2323020203221 is 1223020203232.

It is an a-pointer prime, because the next prime (2323020203243) can be obtained adding 2323020203221 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1631012506321 + 692007696900 = 1277111^2 + 831870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2323020203221 - 2⁷ = 2323020203093 is a prime.

It is a super-2 number, since 2×2323020203221² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2323020203192 and 2323020203201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2323020209221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161510101610 + 1161510101611.

It is an arithmetic number, because the mean of its divisors is an integer number (1161510101611).

Almost surely, 2^{2323020203221} is an apocalyptic number.

It is an amenable number.

2323020203221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2323020203221 is an equidigital number, since it uses as much as digits as its factorization.

2323020203221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 2323020203221 its reverse (1223020203232), we get a palindrome (3546040406453).

The spelling of 2323020203221 in words is "two trillion, three hundred twenty-three billion, twenty million, two hundred three thousand, two hundred twenty-one".