20204024453 has 2 divisors, whose sum is σ = 20204024454. Its totient is φ = 20204024452.

The previous prime is 20204024441. The next prime is 20204024521. The reversal of 20204024453 is 35442040202.

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., 19211900449 + 992124004 = 138607^2 + 31498^2 .

It is a cyclic number.

It is not a de Polignac number, because 20204024453 - 2¹⁰ = 20204023429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20204027453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102012226 + 10102012227.

It is an arithmetic number, because the mean of its divisors is an integer number (10102012227).

Almost surely, 2^20204024453 is an apocalyptic number.

It is an amenable number.

20204024453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204024453 is an equidigital number, since it uses as much as digits as its factorization.

20204024453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 20204024453 its reverse (35442040202), we get a palindrome (55646064655).

The spelling of 20204024453 in words is "twenty billion, two hundred four million, twenty-four thousand, four hundred fifty-three".