12312827519 has 4 divisors (see below), whose sum is σ = 12321421296. Its totient is φ = 12304233744.

The previous prime is 12312827489. The next prime is 12312827533. The reversal of 12312827519 is 91572821321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91572821321 = 47911 ⋅1911311.

It is a cyclic number.

It is not a de Polignac number, because 12312827519 - 2²⁰ = 12311778943 is a prime.

It is a super-2 number, since 2×12312827519² (a number of 21 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 (12312821519) 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, 4294739 + ... + 4297604.

It is an arithmetic number, because the mean of its divisors is an integer number (3080355324).

Almost surely, 2^12312827519 is an apocalyptic number.

12312827519 is a deficient number, since it is larger than the sum of its proper divisors (8593777).

12312827519 is an equidigital number, since it uses as much as digits as its factorization.

12312827519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593776.

The product of its digits is 60480, while the sum is 41.

The spelling of 12312827519 in words is "twelve billion, three hundred twelve million, eight hundred twenty-seven thousand, five hundred nineteen".