100121102011043 has 2 divisors, whose sum is σ = 100121102011044. Its totient is φ = 100121102011042.

The previous prime is 100121102011001. The next prime is 100121102011103. The reversal of 100121102011043 is 340110201121001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121102011043 - 2¹⁰ = 100121102010019 is a prime.

It is not a weakly prime, because it can be changed into another prime (100121102011543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060551005521 + 50060551005522.

It is an arithmetic number, because the mean of its divisors is an integer number (50060551005522).

Almost surely, 2^{100121102011043} is an apocalyptic number.

100121102011043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121102011043 is an equidigital number, since it uses as much as digits as its factorization.

100121102011043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 100121102011043 its reverse (340110201121001), we get a palindrome (440231303132044).

The spelling of 100121102011043 in words is "one hundred trillion, one hundred twenty-one billion, one hundred two million, eleven thousand, forty-three".