20502133193 has 2 divisors, whose sum is σ = 20502133194. Its totient is φ = 20502133192.

The previous prime is 20502133163. The next prime is 20502133207. The reversal of 20502133193 is 39133120502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13158842944 + 7343290249 = 114712^2 + 85693^2 .

It is a cyclic number.

It is not a de Polignac number, because 20502133193 - 2²⁴ = 20485355977 is a prime.

It is not a weakly prime, because it can be changed into another prime (20502133133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10251066596 + 10251066597.

It is an arithmetic number, because the mean of its divisors is an integer number (10251066597).

Almost surely, 2^20502133193 is an apocalyptic number.

It is an amenable number.

20502133193 is a deficient number, since it is larger than the sum of its proper divisors (1).

20502133193 is an equidigital number, since it uses as much as digits as its factorization.

20502133193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

Adding to 20502133193 its reverse (39133120502), we get a palindrome (59635253695).

The spelling of 20502133193 in words is "twenty billion, five hundred two million, one hundred thirty-three thousand, one hundred ninety-three".