121321003159 has 2 divisors, whose sum is σ = 121321003160. Its totient is φ = 121321003158.

The previous prime is 121321003123. The next prime is 121321003163. The reversal of 121321003159 is 951300123121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121321003159 - 2¹³ = 121320994967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121321003109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660501579 + 60660501580.

It is an arithmetic number, because the mean of its divisors is an integer number (60660501580).

Almost surely, 2^121321003159 is an apocalyptic number.

121321003159 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321003159 is an equidigital number, since it uses as much as digits as its factorization.

121321003159 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 28.

The spelling of 121321003159 in words is "one hundred twenty-one billion, three hundred twenty-one million, three thousand, one hundred fifty-nine".