121944000839 has 8 divisors (see below), whose sum is σ = 122178132000. Its totient is φ = 121709940352.

The previous prime is 121944000821. The next prime is 121944000847. The reversal of 121944000839 is 938000449121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121944000839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121944000796 and 121944000805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121944000889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4543742 + ... + 4570500.

It is an arithmetic number, because the mean of its divisors is an integer number (15272266500).

Almost surely, 2^121944000839 is an apocalyptic number.

121944000839 is a deficient number, since it is larger than the sum of its proper divisors (234131161).

121944000839 is an equidigital number, since it uses as much as digits as its factorization.

121944000839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35337.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 121944000839 in words is "one hundred twenty-one billion, nine hundred forty-four million, eight hundred thirty-nine", and thus it is an aban number.