120244240639 has 8 divisors (see below), whose sum is σ = 121735124720. Its totient is φ = 118760406336.

The previous prime is 120244240609. The next prime is 120244240651. The reversal of 120244240639 is 936042442021.

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 120244240639 - 2³³ = 111654306047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120244240598 and 120244240607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120244240609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728117 + ... + 1796350.

It is an arithmetic number, because the mean of its divisors is an integer number (15216890590).

Almost surely, 2^120244240639 is an apocalyptic number.

120244240639 is a deficient number, since it is larger than the sum of its proper divisors (1490884081).

120244240639 is a wasteful number, since it uses less digits than its factorization.

120244240639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524889.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 120244240639 in words is "one hundred twenty billion, two hundred forty-four million, two hundred forty thousand, six hundred thirty-nine".