121384713091 has 2 divisors, whose sum is σ = 121384713092. Its totient is φ = 121384713090.

The previous prime is 121384713061. The next prime is 121384713101. The reversal of 121384713091 is 190317483121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121384713091 - 2¹¹ = 121384711043 is a prime.

It is not a weakly prime, because it can be changed into another prime (121384713001) 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, 60692356545 + 60692356546.

It is an arithmetic number, because the mean of its divisors is an integer number (60692356546).

Almost surely, 2^121384713091 is an apocalyptic number.

121384713091 is a deficient number, since it is larger than the sum of its proper divisors (1).

121384713091 is an equidigital number, since it uses as much as digits as its factorization.

121384713091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 121384713091 in words is "one hundred twenty-one billion, three hundred eighty-four million, seven hundred thirteen thousand, ninety-one".