381120238009 has 24 divisors (see below), whose sum is σ = 451356278400. Its totient is φ = 320782906080.

The previous prime is 381120237991. The next prime is 381120238019. The reversal of 381120238009 is 900832021183.

It is not a de Polignac number, because 381120238009 - 2⁷ = 381120237881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381120238019) 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 23 ways as a sum of consecutive naturals, for example, 2561347 + ... + 2706055.

It is an arithmetic number, because the mean of its divisors is an integer number (18806511600).

Almost surely, 2^381120238009 is an apocalyptic number.

It is an amenable number.

381120238009 is a deficient number, since it is larger than the sum of its proper divisors (70236040391).

381120238009 is a wasteful number, since it uses less digits than its factorization.

381120238009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145693 (or 145686 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 381120238009 in words is "three hundred eighty-one billion, one hundred twenty million, two hundred thirty-eight thousand, nine".