100243034434453 has 2 divisors, whose sum is σ = 100243034434454. Its totient is φ = 100243034434452.

The previous prime is 100243034434351. The next prime is 100243034434553. The reversal of 100243034434453 is 354434430342001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99774387396369 + 468647038084 = 9988713^2 + 684578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100243034434453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100243034434553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50121517217226 + 50121517217227.

It is an arithmetic number, because the mean of its divisors is an integer number (50121517217227).

Almost surely, 2^{100243034434453} is an apocalyptic number.

It is an amenable number.

100243034434453 is a deficient number, since it is larger than the sum of its proper divisors (1).

100243034434453 is an equidigital number, since it uses as much as digits as its factorization.

100243034434453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 100243034434453 its reverse (354434430342001), we get a palindrome (454677464776454).

The spelling of 100243034434453 in words is "one hundred trillion, two hundred forty-three billion, thirty-four million, four hundred thirty-four thousand, four hundred fifty-three".