121501035961519 has 2 divisors, whose sum is σ = 121501035961520. Its totient is φ = 121501035961518.

The previous prime is 121501035961493. The next prime is 121501035961561. The reversal of 121501035961519 is 915169530105121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121501035961519 - 2³³ = 121492446026927 is a prime.

It is a super-2 number, since 2×121501035961519² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121501035961589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60750517980759 + 60750517980760.

It is an arithmetic number, because the mean of its divisors is an integer number (60750517980760).

Almost surely, 2^{121501035961519} is an apocalyptic number.

121501035961519 is a deficient number, since it is larger than the sum of its proper divisors (1).

121501035961519 is an equidigital number, since it uses as much as digits as its factorization.

121501035961519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 49.

The spelling of 121501035961519 in words is "one hundred twenty-one trillion, five hundred one billion, thirty-five million, nine hundred sixty-one thousand, five hundred nineteen".