121002133031281 has 2 divisors, whose sum is σ = 121002133031282. Its totient is φ = 121002133031280.

The previous prime is 121002133031159. The next prime is 121002133031317. The reversal of 121002133031281 is 182130331200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86093178806881 + 34908954224400 = 9278641^2 + 5908380^2 .

It is an emirp because it is prime and its reverse (182130331200121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121002133031281 - 2⁴¹ = 118803109775729 is a prime.

It is a super-2 number, since 2×121002133031281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121002133031081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501066515640 + 60501066515641.

It is an arithmetic number, because the mean of its divisors is an integer number (60501066515641).

Almost surely, 2^{121002133031281} is an apocalyptic number.

It is an amenable number.

121002133031281 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002133031281 is an equidigital number, since it uses as much as digits as its factorization.

121002133031281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 121002133031281 in words is "one hundred twenty-one trillion, two billion, one hundred thirty-three million, thirty-one thousand, two hundred eighty-one".