20430413053 has 2 divisors, whose sum is σ = 20430413054. Its totient is φ = 20430413052.

The previous prime is 20430413039. The next prime is 20430413093. The reversal of 20430413053 is 35031403402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17072558244 + 3357854809 = 130662^2 + 57947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20430413053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20430413093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215206526 + 10215206527.

It is an arithmetic number, because the mean of its divisors is an integer number (10215206527).

Almost surely, 2^20430413053 is an apocalyptic number.

It is an amenable number.

20430413053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20430413053 is an equidigital number, since it uses as much as digits as its factorization.

20430413053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20430413053 its reverse (35031403402), we get a palindrome (55461816455).

The spelling of 20430413053 in words is "twenty billion, four hundred thirty million, four hundred thirteen thousand, fifty-three".