100420405453 has 2 divisors, whose sum is σ = 100420405454. Its totient is φ = 100420405452.

The previous prime is 100420405279. The next prime is 100420405457. The reversal of 100420405453 is 354504024001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98371304164 + 2049101289 = 313642^2 + 45267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100420405453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100420405457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210202726 + 50210202727.

It is an arithmetic number, because the mean of its divisors is an integer number (50210202727).

Almost surely, 2^100420405453 is an apocalyptic number.

It is an amenable number.

100420405453 is a deficient number, since it is larger than the sum of its proper divisors (1).

100420405453 is an equidigital number, since it uses as much as digits as its factorization.

100420405453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 100420405453 its reverse (354504024001), we get a palindrome (454924429454).

The spelling of 100420405453 in words is "one hundred billion, four hundred twenty million, four hundred five thousand, four hundred fifty-three".