121413314161 has 2 divisors, whose sum is σ = 121413314162. Its totient is φ = 121413314160.

The previous prime is 121413314159. The next prime is 121413314177. The reversal of 121413314161 is 161413314121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121413221136 + 93025 = 348444^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 121413314161 - 2¹ = 121413314159 is a prime.

Together with 121413314159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121413314761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60706657080 + 60706657081.

It is an arithmetic number, because the mean of its divisors is an integer number (60706657081).

Almost surely, 2^121413314161 is an apocalyptic number.

It is an amenable number.

121413314161 is a deficient number, since it is larger than the sum of its proper divisors (1).

121413314161 is an equidigital number, since it uses as much as digits as its factorization.

121413314161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

Adding to 121413314161 its reverse (161413314121), we get a palindrome (282826628282).

The spelling of 121413314161 in words is "one hundred twenty-one billion, four hundred thirteen million, three hundred fourteen thousand, one hundred sixty-one".