121200207013 has 2 divisors, whose sum is σ = 121200207014. Its totient is φ = 121200207012.

The previous prime is 121200207001. The next prime is 121200207019. The reversal of 121200207013 is 310702002121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93029270049 + 28170936964 = 305007^2 + 167842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200207013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121200207019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600103506 + 60600103507.

It is an arithmetic number, because the mean of its divisors is an integer number (60600103507).

Almost surely, 2^121200207013 is an apocalyptic number.

It is an amenable number.

121200207013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200207013 is an equidigital number, since it uses as much as digits as its factorization.

121200207013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 121200207013 its reverse (310702002121), we get a palindrome (431902209134).

The spelling of 121200207013 in words is "one hundred twenty-one billion, two hundred million, two hundred seven thousand, thirteen".