121203100349 has 2 divisors, whose sum is σ = 121203100350. Its totient is φ = 121203100348.

The previous prime is 121203100313. The next prime is 121203100351. The reversal of 121203100349 is 943001302121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117164497849 + 4038602500 = 342293^2 + 63550^2 .

It is a cyclic number.

It is not a de Polignac number, because 121203100349 - 2³² = 116908133053 is a prime.

Together with 121203100351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121203100309) 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, 60601550174 + 60601550175.

It is an arithmetic number, because the mean of its divisors is an integer number (60601550175).

Almost surely, 2^121203100349 is an apocalyptic number.

It is an amenable number.

121203100349 is a deficient number, since it is larger than the sum of its proper divisors (1).

121203100349 is an equidigital number, since it uses as much as digits as its factorization.

121203100349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 121203100349 in words is "one hundred twenty-one billion, two hundred three million, one hundred thousand, three hundred forty-nine".