121103030249 has 2 divisors, whose sum is σ = 121103030250. Its totient is φ = 121103030248.

The previous prime is 121103030233. The next prime is 121103030311. The reversal of 121103030249 is 942030301121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84739210000 + 36363820249 = 291100^2 + 190693^2 .

It is a cyclic number.

It is not a de Polignac number, because 121103030249 - 2⁴ = 121103030233 is a prime.

It is not a weakly prime, because it can be changed into another prime (121103050249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551515124 + 60551515125.

It is an arithmetic number, because the mean of its divisors is an integer number (60551515125).

Almost surely, 2^121103030249 is an apocalyptic number.

It is an amenable number.

121103030249 is a deficient number, since it is larger than the sum of its proper divisors (1).

121103030249 is an equidigital number, since it uses as much as digits as its factorization.

121103030249 is an evil number, because the sum of its binary digits is even.

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

The spelling of 121103030249 in words is "one hundred twenty-one billion, one hundred three million, thirty thousand, two hundred forty-nine".