120440005919 has 4 divisors (see below), whose sum is σ = 120441904344. Its totient is φ = 120438107496.

The previous prime is 120440005913. The next prime is 120440005951. The reversal of 120440005919 is 919500044021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120440005919 - 2²⁴ = 120423228703 is a prime.

It is a super-2 number, since 2×120440005919² (a number of 23 digits) contains 22 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 (120440005913) 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 3 ways as a sum of consecutive naturals, for example, 850637 + ... + 982070.

It is an arithmetic number, because the mean of its divisors is an integer number (30110476086).

Almost surely, 2^120440005919 is an apocalyptic number.

120440005919 is a deficient number, since it is larger than the sum of its proper divisors (1898425).

120440005919 is an equidigital number, since it uses as much as digits as its factorization.

120440005919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898424.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 120440005919 in words is "one hundred twenty billion, four hundred forty million, five thousand, nine hundred nineteen".