1326303871601 has 8 divisors (see below), whose sum is σ = 1339977469224. Its totient is φ = 1312640899200.

The previous prime is 1326303871553. The next prime is 1326303871609. The reversal of 1326303871601 is 1061783036231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 794059210000 + 532244661601 = 891100^2 + 729551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1326303871601 - 2²⁶ = 1326236762737 is a prime.

It is a super-3 number, since 3×1326303871601³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326303871609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405246 + ... + 2904791.

It is an arithmetic number, because the mean of its divisors is an integer number (167497183653).

Almost surely, 2^{1326303871601} is an apocalyptic number.

It is an amenable number.

1326303871601 is a deficient number, since it is larger than the sum of its proper divisors (13673597623).

1326303871601 is a wasteful number, since it uses less digits than its factorization.

1326303871601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312611.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 1326303871601 in words is "one trillion, three hundred twenty-six billion, three hundred three million, eight hundred seventy-one thousand, six hundred one".