20213230033 has 2 divisors, whose sum is σ = 20213230034. Its totient is φ = 20213230032.

The previous prime is 20213229997. The next prime is 20213230127. The reversal of 20213230033 is 33003231202.

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., 10480026384 + 9733203649 = 102372^2 + 98657^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213230033 - 2²¹ = 20211132881 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213260033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106615016 + 10106615017.

It is an arithmetic number, because the mean of its divisors is an integer number (10106615017).

Almost surely, 2^20213230033 is an apocalyptic number.

It is an amenable number.

20213230033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213230033 is an equidigital number, since it uses as much as digits as its factorization.

20213230033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20213230033 its reverse (33003231202), we get a palindrome (53216461235).

The spelling of 20213230033 in words is "twenty billion, two hundred thirteen million, two hundred thirty thousand, thirty-three".