12730330255 has 4 divisors (see below), whose sum is σ = 15276396312. Its totient is φ = 10184264200.

The previous prime is 12730330241. The next prime is 12730330307. The reversal of 12730330255 is 55203303721.

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

It is not a de Polignac number, because 12730330255 - 2¹³ = 12730322063 is a prime.

It is a super-2 number, since 2×12730330255² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273033021 + ... + 1273033030.

It is an arithmetic number, because the mean of its divisors is an integer number (3819099078).

Almost surely, 2^12730330255 is an apocalyptic number.

12730330255 is a deficient number, since it is larger than the sum of its proper divisors (2546066057).

12730330255 is an equidigital number, since it uses as much as digits as its factorization.

12730330255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546066056.

The product of its (nonzero) digits is 18900, while the sum is 31.

Adding to 12730330255 its reverse (55203303721), we get a palindrome (67933633976).

The spelling of 12730330255 in words is "twelve billion, seven hundred thirty million, three hundred thirty thousand, two hundred fifty-five".