100121034991279 has 2 divisors, whose sum is σ = 100121034991280. Its totient is φ = 100121034991278.

The previous prime is 100121034991199. The next prime is 100121034991343. The reversal of 100121034991279 is 972199430121001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100121034991279 - 2⁴¹ = 97922011735727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121034911279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060517495639 + 50060517495640.

It is an arithmetic number, because the mean of its divisors is an integer number (50060517495640).

Almost surely, 2^{100121034991279} is an apocalyptic number.

100121034991279 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121034991279 is an equidigital number, since it uses as much as digits as its factorization.

100121034991279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 100121034991279 in words is "one hundred trillion, one hundred twenty-one billion, thirty-four million, nine hundred ninety-one thousand, two hundred seventy-nine".