12831563189 has 4 divisors (see below), whose sum is σ = 13506908640. Its totient is φ = 12156217740.

The previous prime is 12831563177. The next prime is 12831563209. The reversal of 12831563189 is 98136513821.

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: 98136513821 = 104179 ⋅941999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12831563189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831563489) 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, 337672697 + ... + 337672734.

It is an arithmetic number, because the mean of its divisors is an integer number (3376727160).

Almost surely, 2^12831563189 is an apocalyptic number.

12831563189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12831563189 is a deficient number, since it is larger than the sum of its proper divisors (675345451).

12831563189 is an equidigital number, since it uses as much as digits as its factorization.

12831563189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675345450.

The product of its digits is 311040, while the sum is 47.

The spelling of 12831563189 in words is "twelve billion, eight hundred thirty-one million, five hundred sixty-three thousand, one hundred eighty-nine".