121323401219 has 2 divisors, whose sum is σ = 121323401220. Its totient is φ = 121323401218.

The previous prime is 121323401209. The next prime is 121323401231. The reversal of 121323401219 is 912104323121.

It is a weak prime.

It is an emirp because it is prime and its reverse (912104323121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121323401219 - 2²⁴ = 121306624003 is a prime.

It is a super-2 number, since 2×121323401219² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 121323401191 and 121323401200.

It is not a weakly prime, because it can be changed into another prime (121323401209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661700609 + 60661700610.

It is an arithmetic number, because the mean of its divisors is an integer number (60661700610).

Almost surely, 2^121323401219 is an apocalyptic number.

121323401219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323401219 is an equidigital number, since it uses as much as digits as its factorization.

121323401219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 121323401219 in words is "one hundred twenty-one billion, three hundred twenty-three million, four hundred one thousand, two hundred nineteen".