121320013103351 has 2 divisors, whose sum is σ = 121320013103352. Its totient is φ = 121320013103350.

The previous prime is 121320013103321. The next prime is 121320013103369. The reversal of 121320013103351 is 153301310023121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121320013103351 - 2⁴² = 116921966592247 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121320013103351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121320013103321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660006551675 + 60660006551676.

It is an arithmetic number, because the mean of its divisors is an integer number (60660006551676).

Almost surely, 2^{121320013103351} is an apocalyptic number.

121320013103351 is a deficient number, since it is larger than the sum of its proper divisors (1).

121320013103351 is an equidigital number, since it uses as much as digits as its factorization.

121320013103351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 121320013103351 its reverse (153301310023121), we get a palindrome (274621323126472).

The spelling of 121320013103351 in words is "one hundred twenty-one trillion, three hundred twenty billion, thirteen million, one hundred three thousand, three hundred fifty-one".