121333120247 has 2 divisors, whose sum is σ = 121333120248. Its totient is φ = 121333120246.

The previous prime is 121333120193. The next prime is 121333120327. The reversal of 121333120247 is 742021333121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121333120247 - 2¹⁴ = 121333103863 is a prime.

It is a super-2 number, since 2×121333120247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121339120247) 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, 60666560123 + 60666560124.

It is an arithmetic number, because the mean of its divisors is an integer number (60666560124).

Almost surely, 2^121333120247 is an apocalyptic number.

121333120247 is a deficient number, since it is larger than the sum of its proper divisors (1).

121333120247 is an equidigital number, since it uses as much as digits as its factorization.

121333120247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 121333120247 its reverse (742021333121), we get a palindrome (863354453368).

The spelling of 121333120247 in words is "one hundred twenty-one billion, three hundred thirty-three million, one hundred twenty thousand, two hundred forty-seven".