10031320209 has 4 divisors (see below), whose sum is σ = 13375093616. Its totient is φ = 6687546804.

The previous prime is 10031320151. The next prime is 10031320267. The reversal of 10031320209 is 90202313001.

It is a happy number.

10031320209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90202313001 = 3 ⋅30067437667.

It is an interprime number because it is at equal distance from previous prime (10031320151) and next prime (10031320267).

It is not a de Polignac number, because 10031320209 - 2⁸ = 10031319953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10031320289) 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, 1671886699 + ... + 1671886704.

It is an arithmetic number, because the mean of its divisors is an integer number (3343773404).

Almost surely, 2^10031320209 is an apocalyptic number.

It is an amenable number.

10031320209 is a deficient number, since it is larger than the sum of its proper divisors (3343773407).

10031320209 is an equidigital number, since it uses as much as digits as its factorization.

10031320209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343773406.

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 10031320209 in words is "ten billion, thirty-one million, three hundred twenty thousand, two hundred nine".