121136453149 has 2 divisors, whose sum is σ = 121136453150. Its totient is φ = 121136453148.

The previous prime is 121136453111. The next prime is 121136453183. The reversal of 121136453149 is 941354631121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95314212900 + 25822240249 = 308730^2 + 160693^2 .

It is an emirp because it is prime and its reverse (941354631121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121136453149 - 2⁹ = 121136452637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121136453749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60568226574 + 60568226575.

It is an arithmetic number, because the mean of its divisors is an integer number (60568226575).

Almost surely, 2^121136453149 is an apocalyptic number.

It is an amenable number.

121136453149 is a deficient number, since it is larger than the sum of its proper divisors (1).

121136453149 is an equidigital number, since it uses as much as digits as its factorization.

121136453149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The spelling of 121136453149 in words is "one hundred twenty-one billion, one hundred thirty-six million, four hundred fifty-three thousand, one hundred forty-nine".