121060453564549 has 2 divisors, whose sum is σ = 121060453564550. Its totient is φ = 121060453564548.

The previous prime is 121060453564511. The next prime is 121060453564573. The reversal of 121060453564549 is 945465354060121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117001107057025 + 4059346507524 = 10816705^2 + 2014782^2 .

It is a cyclic number.

It is not a de Polignac number, because 121060453564549 - 2¹⁷ = 121060453433477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121060453564549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121060453564579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60530226782274 + 60530226782275.

It is an arithmetic number, because the mean of its divisors is an integer number (60530226782275).

Almost surely, 2^{121060453564549} is an apocalyptic number.

It is an amenable number.

121060453564549 is a deficient number, since it is larger than the sum of its proper divisors (1).

121060453564549 is an equidigital number, since it uses as much as digits as its factorization.

121060453564549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552000, while the sum is 55.

The spelling of 121060453564549 in words is "one hundred twenty-one trillion, sixty billion, four hundred fifty-three million, five hundred sixty-four thousand, five hundred forty-nine".