121233101309 has 2 divisors, whose sum is σ = 121233101310. Its totient is φ = 121233101308.

The previous prime is 121233101287. The next prime is 121233101321. The reversal of 121233101309 is 903101332121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65768141209 + 55464960100 = 256453^2 + 235510^2 .

It is a cyclic number.

It is not a de Polignac number, because 121233101309 - 2¹⁶ = 121233035773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121233101369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616550654 + 60616550655.

It is an arithmetic number, because the mean of its divisors is an integer number (60616550655).

Almost surely, 2^121233101309 is an apocalyptic number.

It is an amenable number.

121233101309 is a deficient number, since it is larger than the sum of its proper divisors (1).

121233101309 is an equidigital number, since it uses as much as digits as its factorization.

121233101309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 121233101309 in words is "one hundred twenty-one billion, two hundred thirty-three million, one hundred one thousand, three hundred nine".