121121230159 has 2 divisors, whose sum is σ = 121121230160. Its totient is φ = 121121230158.

The previous prime is 121121230141. The next prime is 121121230163. The reversal of 121121230159 is 951032121121.

It is a strong prime.

It is an emirp because it is prime and its reverse (951032121121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121121230159 - 2¹⁷ = 121121099087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121230129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560615079 + 60560615080.

It is an arithmetic number, because the mean of its divisors is an integer number (60560615080).

Almost surely, 2^121121230159 is an apocalyptic number.

121121230159 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121230159 is an equidigital number, since it uses as much as digits as its factorization.

121121230159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 121121230159 in words is "one hundred twenty-one billion, one hundred twenty-one million, two hundred thirty thousand, one hundred fifty-nine".