121763256337 has 2 divisors, whose sum is σ = 121763256338. Its totient is φ = 121763256336.

The previous prime is 121763256323. The next prime is 121763256353. The reversal of 121763256337 is 733652367121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116060136976 + 5703119361 = 340676^2 + 75519^2 .

It is a cyclic number.

It is not a de Polignac number, because 121763256337 - 2³⁵ = 87403517969 is a prime.

It is not a weakly prime, because it can be changed into another prime (121763256367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60881628168 + 60881628169.

It is an arithmetic number, because the mean of its divisors is an integer number (60881628169).

Almost surely, 2^121763256337 is an apocalyptic number.

It is an amenable number.

121763256337 is a deficient number, since it is larger than the sum of its proper divisors (1).

121763256337 is an equidigital number, since it uses as much as digits as its factorization.

121763256337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 46.

The spelling of 121763256337 in words is "one hundred twenty-one billion, seven hundred sixty-three million, two hundred fifty-six thousand, three hundred thirty-seven".