120100120110121 has 2 divisors, whose sum is σ = 120100120110122. Its totient is φ = 120100120110120.

The previous prime is 120100120110119. The next prime is 120100120110133. The reversal of 120100120110121 is 121011021001021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106086807024025 + 14013313086096 = 10299845^2 + 3743436^2 .

It is an emirp because it is prime and its reverse (121011021001021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120100120110121 - 2¹ = 120100120110119 is a prime.

Together with 120100120110119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120100120110151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050060055060 + 60050060055061.

It is an arithmetic number, because the mean of its divisors is an integer number (60050060055061).

Almost surely, 2^{120100120110121} is an apocalyptic number.

It is an amenable number.

120100120110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100120110121 is an equidigital number, since it uses as much as digits as its factorization.

120100120110121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120100120110121 its reverse (121011021001021), we get a palindrome (241111141111142).

The spelling of 120100120110121 in words is "one hundred twenty trillion, one hundred billion, one hundred twenty million, one hundred ten thousand, one hundred twenty-one".