121121063737 has 2 divisors, whose sum is σ = 121121063738. Its totient is φ = 121121063736.

The previous prime is 121121063729. The next prime is 121121063741. The reversal of 121121063737 is 737360121121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89176293376 + 31944770361 = 298624^2 + 178731^2 .

It is a cyclic number.

It is not a de Polignac number, because 121121063737 - 2³ = 121121063729 is a prime.

It is not a weakly prime, because it can be changed into another prime (121121063797) 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, 60560531868 + 60560531869.

It is an arithmetic number, because the mean of its divisors is an integer number (60560531869).

Almost surely, 2^121121063737 is an apocalyptic number.

It is an amenable number.

121121063737 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121063737 is an equidigital number, since it uses as much as digits as its factorization.

121121063737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

Adding to 121121063737 its reverse (737360121121), we get a palindrome (858481184858).

The spelling of 121121063737 in words is "one hundred twenty-one billion, one hundred twenty-one million, sixty-three thousand, seven hundred thirty-seven".