121041340159 has 2 divisors, whose sum is σ = 121041340160. Its totient is φ = 121041340158.

The previous prime is 121041340157. The next prime is 121041340181. The reversal of 121041340159 is 951043140121.

It is a weak prime.

It is an emirp because it is prime and its reverse (951043140121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121041340159 - 2¹ = 121041340157 is a prime.

It is a super-2 number, since 2×121041340159² (a number of 23 digits) contains 22 as substring.

Together with 121041340157, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121041340159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121041340157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60520670079 + 60520670080.

It is an arithmetic number, because the mean of its divisors is an integer number (60520670080).

Almost surely, 2^121041340159 is an apocalyptic number.

121041340159 is a deficient number, since it is larger than the sum of its proper divisors (1).

121041340159 is an equidigital number, since it uses as much as digits as its factorization.

121041340159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 121041340159 in words is "one hundred twenty-one billion, forty-one million, three hundred forty thousand, one hundred fifty-nine".