10191223609 has 4 divisors (see below), whose sum is σ = 11647112704. Its totient is φ = 8735334516.

The previous prime is 10191223607. The next prime is 10191223613. The reversal of 10191223609 is 90632219101.

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.

It is a cyclic number.

It is not a de Polignac number, because 10191223609 - 2¹ = 10191223607 is a prime.

It is a super-2 number, since 2×10191223609² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10191223607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727944537 + ... + 727944550.

It is an arithmetic number, because the mean of its divisors is an integer number (2911778176).

Almost surely, 2^10191223609 is an apocalyptic number.

It is an amenable number.

10191223609 is a deficient number, since it is larger than the sum of its proper divisors (1455889095).

10191223609 is an equidigital number, since it uses as much as digits as its factorization.

10191223609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455889094.

The product of its (nonzero) digits is 5832, while the sum is 34.

It can be divided in two parts, 101912 and 23609, that added together give a palindrome (125521).

The spelling of 10191223609 in words is "ten billion, one hundred ninety-one million, two hundred twenty-three thousand, six hundred nine".