121300599499 has 2 divisors, whose sum is σ = 121300599500. Its totient is φ = 121300599498.

The previous prime is 121300599479. The next prime is 121300599509. The reversal of 121300599499 is 994995003121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121300599499 - 2¹⁷ = 121300468427 is a prime.

It is not a weakly prime, because it can be changed into another prime (121300599419) 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, 60650299749 + 60650299750.

It is an arithmetic number, because the mean of its divisors is an integer number (60650299750).

Almost surely, 2^121300599499 is an apocalyptic number.

121300599499 is a deficient number, since it is larger than the sum of its proper divisors (1).

121300599499 is an equidigital number, since it uses as much as digits as its factorization.

121300599499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 52.

The spelling of 121300599499 in words is "one hundred twenty-one billion, three hundred million, five hundred ninety-nine thousand, four hundred ninety-nine".