121412321399 has 8 divisors (see below), whose sum is σ = 122951434032. Its totient is φ = 119875025920.

The previous prime is 121412321357. The next prime is 121412321411. The reversal of 121412321399 is 993123214121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121412321399 - 2¹² = 121412317303 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 (121412321099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319562 + ... + 587319.

It is an arithmetic number, because the mean of its divisors is an integer number (15368929254).

Almost surely, 2^121412321399 is an apocalyptic number.

121412321399 is a deficient number, since it is larger than the sum of its proper divisors (1539112633).

121412321399 is an equidigital number, since it uses as much as digits as its factorization.

121412321399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908577.

The product of its digits is 23328, while the sum is 38.

The spelling of 121412321399 in words is "one hundred twenty-one billion, four hundred twelve million, three hundred twenty-one thousand, three hundred ninety-nine".