121322102309 has 4 divisors (see below), whose sum is σ = 121794173004. Its totient is φ = 120850031616.

The previous prime is 121322102287. The next prime is 121322102329. The reversal of 121322102309 is 903201223121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57453693025 + 63868409284 = 239695^2 + 252722^2 .

It is a cyclic number.

It is not a de Polignac number, because 121322102309 - 2⁸ = 121322102053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322102329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236034962 + ... + 236035475.

It is an arithmetic number, because the mean of its divisors is an integer number (30448543251).

Almost surely, 2^121322102309 is an apocalyptic number.

It is an amenable number.

121322102309 is a deficient number, since it is larger than the sum of its proper divisors (472070695).

121322102309 is an equidigital number, since it uses as much as digits as its factorization.

121322102309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472070694.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 121322102309 in words is "one hundred twenty-one billion, three hundred twenty-two million, one hundred two thousand, three hundred nine".