1321313312201 has 8 divisors (see below), whose sum is σ = 1365772061184. Its totient is φ = 1276969296960.

The previous prime is 1321313312173. The next prime is 1321313312239. The reversal of 1321313312201 is 1022133131231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321313312201 is a prime.

It is a super-3 number, since 3×1321313312201³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1321313312701) 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, 28660016 + ... + 28706081.

It is an arithmetic number, because the mean of its divisors is an integer number (170721507648).

Almost surely, 2^{1321313312201} is an apocalyptic number.

It is an amenable number.

1321313312201 is a deficient number, since it is larger than the sum of its proper divisors (44458748983).

1321313312201 is an equidigital number, since it uses as much as digits as its factorization.

1321313312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57366871.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1321313312201 its reverse (1022133131231), we get a palindrome (2343446443432).

The spelling of 1321313312201 in words is "one trillion, three hundred twenty-one billion, three hundred thirteen million, three hundred twelve thousand, two hundred one".