20001223301 has 2 divisors, whose sum is σ = 20001223302. Its totient is φ = 20001223300.

The previous prime is 20001223289. The next prime is 20001223309. The reversal of 20001223301 is 10332210002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19888332676 + 112890625 = 141026^2 + 10625^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001223301 - 2³⁰ = 18927481477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001223309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000611650 + 10000611651.

It is an arithmetic number, because the mean of its divisors is an integer number (10000611651).

Almost surely, 2^20001223301 is an apocalyptic number.

It is an amenable number.

20001223301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001223301 is an equidigital number, since it uses as much as digits as its factorization.

20001223301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20001223301 its reverse (10332210002), we get a palindrome (30333433303).

The spelling of 20001223301 in words is "twenty billion, one million, two hundred twenty-three thousand, three hundred one".