1340101330021 has 4 divisors (see below), whose sum is σ = 1349883091692. Its totient is φ = 1330319568352.

The previous prime is 1340101330019. The next prime is 1340101330093. The reversal of 1340101330021 is 1200331010431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 807456799396 + 532644530625 = 898586^2 + 729825^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340101330021 - 2¹ = 1340101330019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340101330721) 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, 4890880630 + ... + 4890880903.

It is an arithmetic number, because the mean of its divisors is an integer number (337470772923).

Almost surely, 2^{1340101330021} is an apocalyptic number.

It is an amenable number.

1340101330021 is a deficient number, since it is larger than the sum of its proper divisors (9781761671).

1340101330021 is an equidigital number, since it uses as much as digits as its factorization.

1340101330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9781761670.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1340101330021 its reverse (1200331010431), we get a palindrome (2540432340452).

The spelling of 1340101330021 in words is "one trillion, three hundred forty billion, one hundred one million, three hundred thirty thousand, twenty-one".