121322310209951 has 2 divisors, whose sum is σ = 121322310209952. Its totient is φ = 121322310209950.

The previous prime is 121322310209879. The next prime is 121322310210029. The reversal of 121322310209951 is 159902013223121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121322310209951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121322310209899 and 121322310209908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121322310203951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661155104975 + 60661155104976.

It is an arithmetic number, because the mean of its divisors is an integer number (60661155104976).

Almost surely, 2^{121322310209951} is an apocalyptic number.

121322310209951 is a deficient number, since it is larger than the sum of its proper divisors (1).

121322310209951 is an equidigital number, since it uses as much as digits as its factorization.

121322310209951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 121322310209951 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, three hundred ten million, two hundred nine thousand, nine hundred fifty-one".