100121203333243 has 2 divisors, whose sum is σ = 100121203333244. Its totient is φ = 100121203333242.

The previous prime is 100121203333201. The next prime is 100121203333337. The reversal of 100121203333243 is 342333302121001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121203333243 - 2¹⁷ = 100121203202171 is a prime.

It is not a weakly prime, because it can be changed into another prime (100121203333043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060601666621 + 50060601666622.

It is an arithmetic number, because the mean of its divisors is an integer number (50060601666622).

Almost surely, 2^{100121203333243} is an apocalyptic number.

100121203333243 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121203333243 is an equidigital number, since it uses as much as digits as its factorization.

100121203333243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 100121203333243 its reverse (342333302121001), we get a palindrome (442454505454244).

The spelling of 100121203333243 in words is "one hundred trillion, one hundred twenty-one billion, two hundred three million, three hundred thirty-three thousand, two hundred forty-three".