121298941237 has 2 divisors, whose sum is σ = 121298941238. Its totient is φ = 121298941236.

The previous prime is 121298941223. The next prime is 121298941243. The reversal of 121298941237 is 732149892121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94363238596 + 26935702641 = 307186^2 + 164121^2 .

It is a cyclic number.

It is not a de Polignac number, because 121298941237 - 2⁷ = 121298941109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121298941217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60649470618 + 60649470619.

It is an arithmetic number, because the mean of its divisors is an integer number (60649470619).

Almost surely, 2^121298941237 is an apocalyptic number.

It is an amenable number.

121298941237 is a deficient number, since it is larger than the sum of its proper divisors (1).

121298941237 is an equidigital number, since it uses as much as digits as its factorization.

121298941237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 49.

The spelling of 121298941237 in words is "one hundred twenty-one billion, two hundred ninety-eight million, nine hundred forty-one thousand, two hundred thirty-seven".