20132453563 has 2 divisors, whose sum is σ = 20132453564. Its totient is φ = 20132453562.

The previous prime is 20132453543. The next prime is 20132453569. The reversal of 20132453563 is 36535423102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20132453563 is a prime.

It is not a weakly prime, because it can be changed into another prime (20132453569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066226781 + 10066226782.

It is an arithmetic number, because the mean of its divisors is an integer number (10066226782).

Almost surely, 2^20132453563 is an apocalyptic number.

20132453563 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132453563 is an equidigital number, since it uses as much as digits as its factorization.

20132453563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 20132453563 its reverse (36535423102), we get a palindrome (56667876665).

The spelling of 20132453563 in words is "twenty billion, one hundred thirty-two million, four hundred fifty-three thousand, five hundred sixty-three".