121201313113 has 2 divisors, whose sum is σ = 121201313114. Its totient is φ = 121201313112.

The previous prime is 121201313099. The next prime is 121201313117. The reversal of 121201313113 is 311313102121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78990788809 + 42210524304 = 281053^2 + 205452^2 .

It is a cyclic number.

It is not a de Polignac number, because 121201313113 - 2¹³ = 121201304921 is a prime.

It is not a weakly prime, because it can be changed into another prime (121201313117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600656556 + 60600656557.

It is an arithmetic number, because the mean of its divisors is an integer number (60600656557).

Almost surely, 2^121201313113 is an apocalyptic number.

It is an amenable number.

121201313113 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201313113 is an equidigital number, since it uses as much as digits as its factorization.

121201313113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121201313113 its reverse (311313102121), we get a palindrome (432514415234).

The spelling of 121201313113 in words is "one hundred twenty-one billion, two hundred one million, three hundred thirteen thousand, one hundred thirteen".