121331312299 has 2 divisors, whose sum is σ = 121331312300. Its totient is φ = 121331312298.

The previous prime is 121331312293. The next prime is 121331312371. The reversal of 121331312299 is 992213133121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121331312299 - 2⁷ = 121331312171 is a prime.

It is not a weakly prime, because it can be changed into another prime (121331312293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665656149 + 60665656150.

It is an arithmetic number, because the mean of its divisors is an integer number (60665656150).

Almost surely, 2^121331312299 is an apocalyptic number.

121331312299 is a deficient number, since it is larger than the sum of its proper divisors (1).

121331312299 is an equidigital number, since it uses as much as digits as its factorization.

121331312299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 37.

The spelling of 121331312299 in words is "one hundred twenty-one billion, three hundred thirty-one million, three hundred twelve thousand, two hundred ninety-nine".