120021113312101 has 2 divisors, whose sum is σ = 120021113312102. Its totient is φ = 120021113312100.

The previous prime is 120021113312077. The next prime is 120021113312129. The reversal of 120021113312101 is 101213311120021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114285208061476 + 5735905250625 = 10690426^2 + 2394975^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021113312101 - 2⁵ = 120021113312069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021113312171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010556656050 + 60010556656051.

It is an arithmetic number, because the mean of its divisors is an integer number (60010556656051).

Almost surely, 2^{120021113312101} is an apocalyptic number.

It is an amenable number.

120021113312101 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021113312101 is an equidigital number, since it uses as much as digits as its factorization.

120021113312101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 120021113312101 its reverse (101213311120021), we get a palindrome (221234424432122).

The spelling of 120021113312101 in words is "one hundred twenty trillion, twenty-one billion, one hundred thirteen million, three hundred twelve thousand, one hundred one".