121333012961 has 2 divisors, whose sum is σ = 121333012962. Its totient is φ = 121333012960.

The previous prime is 121333012883. The next prime is 121333012979. The reversal of 121333012961 is 169210333121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64143160225 + 57189852736 = 253265^2 + 239144^2 .

It is an emirp because it is prime and its reverse (169210333121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121333012961 - 2¹⁸ = 121332750817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121333012861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60666506480 + 60666506481.

It is an arithmetic number, because the mean of its divisors is an integer number (60666506481).

Almost surely, 2^121333012961 is an apocalyptic number.

It is an amenable number.

121333012961 is a deficient number, since it is larger than the sum of its proper divisors (1).

121333012961 is an equidigital number, since it uses as much as digits as its factorization.

121333012961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 121333012961 in words is "one hundred twenty-one billion, three hundred thirty-three million, twelve thousand, nine hundred sixty-one".