100121021102203 has 2 divisors, whose sum is σ = 100121021102204. Its totient is φ = 100121021102202.

The previous prime is 100121021102149. The next prime is 100121021102269. The reversal of 100121021102203 is 302201120121001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121021102203 - 2¹⁷ = 100121020971131 is a prime.

It is not a weakly prime, because it can be changed into another prime (100121021102293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060510551101 + 50060510551102.

It is an arithmetic number, because the mean of its divisors is an integer number (50060510551102).

Almost surely, 2^{100121021102203} is an apocalyptic number.

100121021102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121021102203 is an equidigital number, since it uses as much as digits as its factorization.

100121021102203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100121021102203 its reverse (302201120121001), we get a palindrome (402322141223204).

The spelling of 100121021102203 in words is "one hundred trillion, one hundred twenty-one billion, twenty-one million, one hundred two thousand, two hundred three".