12556135343 has 2 divisors, whose sum is σ = 12556135344. Its totient is φ = 12556135342.

The previous prime is 12556135301. The next prime is 12556135393. The reversal of 12556135343 is 34353165521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12556135343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12556135297 and 12556135306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12556135393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6278067671 + 6278067672.

It is an arithmetic number, because the mean of its divisors is an integer number (6278067672).

Almost surely, 2^12556135343 is an apocalyptic number.

12556135343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12556135343 is an equidigital number, since it uses as much as digits as its factorization.

12556135343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 38.

The spelling of 12556135343 in words is "twelve billion, five hundred fifty-six million, one hundred thirty-five thousand, three hundred forty-three".