13140252121208 has 16 divisors (see below), whose sum is σ = 24638075203560. Its totient is φ = 6570098733600.

The previous prime is 13140252121207. The next prime is 13140252121267. The reversal of 13140252121208 is 80212125204131.

It is a super-2 number, since 2×13140252121208² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140252121207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294778 + ... + 5287433.

Almost surely, 2^{13140252121208} is an apocalyptic number.

It is an amenable number.

13140252121208 is a deficient number, since it is larger than the sum of its proper divisors (11497823082352).

13140252121208 is a wasteful number, since it uses less digits than its factorization.

13140252121208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6831758 (or 6831754 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 13140252121208 its reverse (80212125204131), we get a palindrome (93352377325339).

The spelling of 13140252121208 in words is "thirteen trillion, one hundred forty billion, two hundred fifty-two million, one hundred twenty-one thousand, two hundred eight".