1340001328081 has 16 divisors (see below), whose sum is σ = 1451896608960. Its totient is φ = 1229373005760.

The previous prime is 1340001328049. The next prime is 1340001328087. The reversal of 1340001328081 is 1808231000431.

It is a cyclic number.

It is not a de Polignac number, because 1340001328081 - 2⁵ = 1340001328049 is a prime.

It is a super-3 number, since 3×1340001328081³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1340001328087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4344331 + ... + 4642543.

It is an arithmetic number, because the mean of its divisors is an integer number (90743538060).

Almost surely, 2^{1340001328081} is an apocalyptic number.

It is an amenable number.

1340001328081 is a deficient number, since it is larger than the sum of its proper divisors (111895280879).

1340001328081 is a wasteful number, since it uses less digits than its factorization.

1340001328081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300336.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 1340001328081 in words is "one trillion, three hundred forty billion, one million, three hundred twenty-eight thousand, eighty-one".