13212630243506 has 16 divisors (see below), whose sum is σ = 19860769555200. Its totient is φ = 6592374349008.

The previous prime is 13212630243433. The next prime is 13212630243581. The reversal of 13212630243506 is 60534203621231.

It is a self number, because there is not a number n which added to its sum of digits gives 13212630243506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51078965 + ... + 51336983.

It is an arithmetic number, because the mean of its divisors is an integer number (1241298097200).

Almost surely, 2^{13212630243506} is an apocalyptic number.

13212630243506 is a deficient number, since it is larger than the sum of its proper divisors (6648139311694).

13212630243506 is a wasteful number, since it uses less digits than its factorization.

13212630243506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311953.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 13212630243506 its reverse (60534203621231), we get a palindrome (73746833864737).

The spelling of 13212630243506 in words is "thirteen trillion, two hundred twelve billion, six hundred thirty million, two hundred forty-three thousand, five hundred six".