13212145544340 has 48 divisors (see below), whose sum is σ = 39170125616832. Its totient is φ = 3315989469696.

The previous prime is 13212145544333. The next prime is 13212145544347. The reversal of 13212145544340 is 4344554121231.

It is an interprime number because it is at equal distance from previous prime (13212145544333) and next prime (13212145544347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212145544347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6476540914 + ... + 6476542953.

It is an arithmetic number, because the mean of its divisors is an integer number (816044283684).

Almost surely, 2^{13212145544340} is an apocalyptic number.

13212145544340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212145544340 is an abundant number, since it is smaller than the sum of its proper divisors (25957980072492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13212145544340 is a wasteful number, since it uses less digits than its factorization.

13212145544340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12953083896 (or 12953083894 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 13212145544340 its reverse (4344554121231), we get a palindrome (17556699665571).

The spelling of 13212145544340 in words is "thirteen trillion, two hundred twelve billion, one hundred forty-five million, five hundred forty-four thousand, three hundred forty".