13212023142340 has 48 divisors (see below), whose sum is σ = 30279382346304. Its totient is φ = 4802492937600.

The previous prime is 13212023142287. The next prime is 13212023142359. The reversal of 13212023142340 is 4324132021231.

It is a junction number, because it is equal to n+sod(n) for n = 13212023142299 and 13212023142308.

It is an unprimeable number.

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, 11180646 + ... + 12305725.

It is an arithmetic number, because the mean of its divisors is an integer number (630820465548).

Almost surely, 2^{13212023142340} is an apocalyptic number.

13212023142340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212023142340 is an abundant number, since it is smaller than the sum of its proper divisors (17067359203964).

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

13212023142340 is a wasteful number, since it uses less digits than its factorization.

13212023142340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23488948 (or 23488946 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13212023142340 its reverse (4324132021231), we get a palindrome (17536155163571).

The spelling of 13212023142340 in words is "thirteen trillion, two hundred twelve billion, twenty-three million, one hundred forty-two thousand, three hundred forty".