121828809413 has 8 divisors (see below), whose sum is σ = 124201636608. Its totient is φ = 119472290784.

The previous prime is 121828809409. The next prime is 121828809481. The reversal of 121828809413 is 314908828121.

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 121828809413 - 2² = 121828809409 is a prime.

It is a super-3 number, since 3×121828809413³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121828809313) 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, 4062056 + ... + 4091937.

It is an arithmetic number, because the mean of its divisors is an integer number (15525204576).

Almost surely, 2^121828809413 is an apocalyptic number.

It is an amenable number.

121828809413 is a deficient number, since it is larger than the sum of its proper divisors (2372827195).

121828809413 is an equidigital number, since it uses as much as digits as its factorization.

121828809413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8154283.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 121828809413 in words is "one hundred twenty-one billion, eight hundred twenty-eight million, eight hundred nine thousand, four hundred thirteen".