120121101020513 has 2 divisors, whose sum is σ = 120121101020514. Its totient is φ = 120121101020512.

The previous prime is 120121101020497. The next prime is 120121101020567. The reversal of 120121101020513 is 315020101121021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119845194548689 + 275906471824 = 10947383^2 + 525268^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121101020513 - 2⁴ = 120121101020497 is a prime.

It is not a weakly prime, because it can be changed into another prime (120121101220513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060550510256 + 60060550510257.

It is an arithmetic number, because the mean of its divisors is an integer number (60060550510257).

Almost surely, 2^{120121101020513} is an apocalyptic number.

It is an amenable number.

120121101020513 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121101020513 is an equidigital number, since it uses as much as digits as its factorization.

120121101020513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 120121101020513 its reverse (315020101121021), we get a palindrome (435141202141534).

The spelling of 120121101020513 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred one million, twenty thousand, five hundred thirteen".