1340112400420 has 48 divisors (see below), whose sum is σ = 2945308399488. Its totient is φ = 511217118720.

The previous prime is 1340112400379. The next prime is 1340112400439. The reversal of 1340112400420 is 240042110431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1340112400391 and 1340112400400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4167366 + ... + 4477405.

It is an arithmetic number, because the mean of its divisors is an integer number (61360591656).

Almost surely, 2^{1340112400420} is an apocalyptic number.

1340112400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340112400420 is an abundant number, since it is smaller than the sum of its proper divisors (1605195999068).

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

1340112400420 is a wasteful number, since it uses less digits than its factorization.

1340112400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8645140 (or 8645138 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1340112400420 its reverse (240042110431), we get a palindrome (1580154510851).

The spelling of 1340112400420 in words is "one trillion, three hundred forty billion, one hundred twelve million, four hundred thousand, four hundred twenty".