121497152773 has 2 divisors, whose sum is σ = 121497152774. Its totient is φ = 121497152772.

The previous prime is 121497152731. The next prime is 121497152801. The reversal of 121497152773 is 377251794121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117675069444 + 3822083329 = 343038^2 + 61823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121497152773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121497156773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60748576386 + 60748576387.

It is an arithmetic number, because the mean of its divisors is an integer number (60748576387).

Almost surely, 2^121497152773 is an apocalyptic number.

It is an amenable number.

121497152773 is a deficient number, since it is larger than the sum of its proper divisors (1).

121497152773 is an equidigital number, since it uses as much as digits as its factorization.

121497152773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 49.

The spelling of 121497152773 in words is "one hundred twenty-one billion, four hundred ninety-seven million, one hundred fifty-two thousand, seven hundred seventy-three".