100120200030121 has 2 divisors, whose sum is σ = 100120200030122. Its totient is φ = 100120200030120.

The previous prime is 100120200029963. The next prime is 100120200030157. The reversal of 100120200030121 is 121030002021001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86628830266521 + 13491369763600 = 9307461^2 + 3673060^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120200030121 - 2¹³ = 100120200021929 is a prime.

It is not a weakly prime, because it can be changed into another prime (100120200030421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060100015060 + 50060100015061.

It is an arithmetic number, because the mean of its divisors is an integer number (50060100015061).

Almost surely, 2^{100120200030121} is an apocalyptic number.

It is an amenable number.

100120200030121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120200030121 is an equidigital number, since it uses as much as digits as its factorization.

100120200030121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100120200030121 its reverse (121030002021001), we get a palindrome (221150202051122).

The spelling of 100120200030121 in words is "one hundred trillion, one hundred twenty billion, two hundred million, thirty thousand, one hundred twenty-one".