121321103339 has 2 divisors, whose sum is σ = 121321103340. Its totient is φ = 121321103338.

The previous prime is 121321103297. The next prime is 121321103353. The reversal of 121321103339 is 933301123121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121321103339 is a prime.

It is not a weakly prime, because it can be changed into another prime (121321103369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660551669 + 60660551670.

It is an arithmetic number, because the mean of its divisors is an integer number (60660551670).

Almost surely, 2^121321103339 is an apocalyptic number.

121321103339 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321103339 is an equidigital number, since it uses as much as digits as its factorization.

121321103339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 121321103339 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred three thousand, three hundred thirty-nine".