13140221113246 has 4 divisors (see below), whose sum is σ = 19710331669872. Its totient is φ = 6570110556622.

The previous prime is 13140221113207. The next prime is 13140221113291. The reversal of 13140221113246 is 64231112204131.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3285055278310 + ... + 3285055278313.

It is an arithmetic number, because the mean of its divisors is an integer number (4927582917468).

Almost surely, 2^{13140221113246} is an apocalyptic number.

13140221113246 is a deficient number, since it is larger than the sum of its proper divisors (6570110556626).

13140221113246 is an equidigital number, since it uses as much as digits as its factorization.

13140221113246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570110556625.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 13140221113246 its reverse (64231112204131), we get a palindrome (77371333317377).

The spelling of 13140221113246 in words is "thirteen trillion, one hundred forty billion, two hundred twenty-one million, one hundred thirteen thousand, two hundred forty-six".