20434130222453 has 2 divisors, whose sum is σ = 20434130222454. Its totient is φ = 20434130222452.

The previous prime is 20434130222357. The next prime is 20434130222531. The reversal of 20434130222453 is 35422203143402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10373700797329 + 10060429425124 = 3220823^2 + 3171818^2 .

It is a cyclic number.

It is not a de Polignac number, because 20434130222453 - 2¹² = 20434130218357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20434130222153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217065111226 + 10217065111227.

It is an arithmetic number, because the mean of its divisors is an integer number (10217065111227).

Almost surely, 2^{20434130222453} is an apocalyptic number.

It is an amenable number.

20434130222453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20434130222453 is an equidigital number, since it uses as much as digits as its factorization.

20434130222453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 20434130222453 its reverse (35422203143402), we get a palindrome (55856333365855).

The spelling of 20434130222453 in words is "twenty trillion, four hundred thirty-four billion, one hundred thirty million, two hundred twenty-two thousand, four hundred fifty-three".