1340013423140 has 144 divisors (see below), whose sum is σ = 3363923031168. Its totient is φ = 439198543872.

The previous prime is 1340013423131. The next prime is 1340013423173. The reversal of 1340013423140 is 413243100431.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156484499 + ... + 156493061.

Almost surely, 2^{1340013423140} is an apocalyptic number.

1340013423140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340013423140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681961515584).

1340013423140 is an abundant number, since it is smaller than the sum of its proper divisors (2023909608028).

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

1340013423140 is a wasteful number, since it uses less digits than its factorization.

1340013423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738 (or 10713 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1340013423140 its reverse (413243100431), we get a palindrome (1753256523571).

The spelling of 1340013423140 in words is "one trillion, three hundred forty billion, thirteen million, four hundred twenty-three thousand, one hundred forty".