121255675071511 has 2 divisors, whose sum is σ = 121255675071512. Its totient is φ = 121255675071510.

The previous prime is 121255675071457. The next prime is 121255675071523. The reversal of 121255675071511 is 115170576552121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121255675071511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121255675071211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60627837535755 + 60627837535756.

It is an arithmetic number, because the mean of its divisors is an integer number (60627837535756).

Almost surely, 2^{121255675071511} is an apocalyptic number.

121255675071511 is a deficient number, since it is larger than the sum of its proper divisors (1).

121255675071511 is an equidigital number, since it uses as much as digits as its factorization.

121255675071511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 735000, while the sum is 49.

The spelling of 121255675071511 in words is "one hundred twenty-one trillion, two hundred fifty-five billion, six hundred seventy-five million, seventy-one thousand, five hundred eleven".