20243002453 has 2 divisors, whose sum is σ = 20243002454. Its totient is φ = 20243002452.

The previous prime is 20243002411. The next prime is 20243002463. The reversal of 20243002453 is 35420034202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13214192209 + 7028810244 = 114953^2 + 83838^2 .

It is a cyclic number.

It is not a de Polignac number, because 20243002453 - 2²⁹ = 19706131541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20243002463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121501226 + 10121501227.

It is an arithmetic number, because the mean of its divisors is an integer number (10121501227).

Almost surely, 2^20243002453 is an apocalyptic number.

It is an amenable number.

20243002453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20243002453 is an equidigital number, since it uses as much as digits as its factorization.

20243002453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20243002453 its reverse (35420034202), we get a palindrome (55663036655).

The spelling of 20243002453 in words is "twenty billion, two hundred forty-three million, two thousand, four hundred fifty-three".