12588317243 has 4 divisors (see below), whose sum is σ = 13135635408. Its totient is φ = 12040999080.

The previous prime is 12588317221. The next prime is 12588317249. The reversal of 12588317243 is 34271388521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12588317243 - 2⁶ = 12588317179 is a prime.

It is a super-2 number, since 2×12588317243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12588317194 and 12588317203.

It is not an unprimeable number, because it can be changed into a prime (12588317249) 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, 273659048 + ... + 273659093.

It is an arithmetic number, because the mean of its divisors is an integer number (3283908852).

Almost surely, 2^12588317243 is an apocalyptic number.

12588317243 is a deficient number, since it is larger than the sum of its proper divisors (547318165).

12588317243 is an equidigital number, since it uses as much as digits as its factorization.

12588317243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547318164.

The product of its digits is 322560, while the sum is 44.

The spelling of 12588317243 in words is "twelve billion, five hundred eighty-eight million, three hundred seventeen thousand, two hundred forty-three".