121005061013 has 2 divisors, whose sum is σ = 121005061014. Its totient is φ = 121005061012.

The previous prime is 121005060997. The next prime is 121005061063. The reversal of 121005061013 is 310160500121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108262715089 + 12742345924 = 329033^2 + 112882^2 .

It is a cyclic number.

It is not a de Polignac number, because 121005061013 - 2⁴ = 121005060997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121005061063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60502530506 + 60502530507.

It is an arithmetic number, because the mean of its divisors is an integer number (60502530507).

Almost surely, 2^121005061013 is an apocalyptic number.

It is an amenable number.

121005061013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121005061013 is an equidigital number, since it uses as much as digits as its factorization.

121005061013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 121005061013 its reverse (310160500121), we get a palindrome (431165561134).

The spelling of 121005061013 in words is "one hundred twenty-one billion, five million, sixty-one thousand, thirteen".