121120320353 has 2 divisors, whose sum is σ = 121120320354. Its totient is φ = 121120320352.

The previous prime is 121120320341. The next prime is 121120320367. The reversal of 121120320353 is 353023021121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86666649664 + 34453670689 = 294392^2 + 185617^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120320353 - 2¹⁶ = 121120254817 is a prime.

It is not a weakly prime, because it can be changed into another prime (121120320323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560160176 + 60560160177.

It is an arithmetic number, because the mean of its divisors is an integer number (60560160177).

Almost surely, 2^121120320353 is an apocalyptic number.

It is an amenable number.

121120320353 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120320353 is an equidigital number, since it uses as much as digits as its factorization.

121120320353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 121120320353 its reverse (353023021121), we get a palindrome (474143341474).

The spelling of 121120320353 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred twenty thousand, three hundred fifty-three".