13420421151240 has 32 divisors (see below), whose sum is σ = 40261263454080. Its totient is φ = 3578778973632.

The previous prime is 13420421151223. The next prime is 13420421151257. The reversal of 13420421151240 is 4215112402431.

It is an interprime number because it is at equal distance from previous prime (13420421151223) and next prime (13420421151257).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13420421151198 and 13420421151207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55918421344 + ... + 55918421583.

It is an arithmetic number, because the mean of its divisors is an integer number (1258164482940).

Almost surely, 2^{13420421151240} is an apocalyptic number.

13420421151240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13420421151240 is an abundant number, since it is smaller than the sum of its proper divisors (26840842302840).

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

13420421151240 is a wasteful number, since it uses less digits than its factorization.

13420421151240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111836842941 (or 111836842937 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 13420421151240 its reverse (4215112402431), we get a palindrome (17635533553671).

The spelling of 13420421151240 in words is "thirteen trillion, four hundred twenty billion, four hundred twenty-one million, one hundred fifty-one thousand, two hundred forty".