121010159 has 2 divisors, whose sum is σ = 121010160. Its totient is φ = 121010158.

The previous prime is 121010137. The next prime is 121010161. The reversal of 121010159 is 951010121.

It is a strong prime.

It is an emirp because it is prime and its reverse (951010121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010159 is a prime.

Together with 121010161, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121010159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505079 + 60505080.

It is an arithmetic number, because the mean of its divisors is an integer number (60505080).

Almost surely, 2^121010159 is an apocalyptic number.

121010159 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010159 is an equidigital number, since it uses as much as digits as its factorization.

121010159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 121010159 is about 11000.4617630352. The cubic root of 121010159 is about 494.6225861695.

The spelling of 121010159 in words is "one hundred twenty-one million, ten thousand, one hundred fifty-nine".