121752105677 has 2 divisors, whose sum is σ = 121752105678. Its totient is φ = 121752105676.

The previous prime is 121752105661. The next prime is 121752105691. The reversal of 121752105677 is 776501257121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109517312356 + 12234793321 = 330934^2 + 110611^2 .

It is a cyclic number.

It is not a de Polignac number, because 121752105677 - 2⁴ = 121752105661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121752101677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60876052838 + 60876052839.

It is an arithmetic number, because the mean of its divisors is an integer number (60876052839).

Almost surely, 2^121752105677 is an apocalyptic number.

It is an amenable number.

121752105677 is a deficient number, since it is larger than the sum of its proper divisors (1).

121752105677 is an equidigital number, since it uses as much as digits as its factorization.

121752105677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205800, while the sum is 44.

The spelling of 121752105677 in words is "one hundred twenty-one billion, seven hundred fifty-two million, one hundred five thousand, six hundred seventy-seven".