1321441033313 has 8 divisors (see below), whose sum is σ = 1399200428808. Its totient is φ = 1243684701184.

The previous prime is 1321441033309. The next prime is 1321441033321. The reversal of 1321441033313 is 3133301441231.

It can be written as a sum of positive squares in 4 ways, for example, as 1063678697104 + 257762336209 = 1031348^2 + 507703^2 .

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 1321441033313 - 2² = 1321441033309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321441032313) 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, 153845 + ... + 1632957.

It is an arithmetic number, because the mean of its divisors is an integer number (174900053601).

Almost surely, 2^{1321441033313} is an apocalyptic number.

It is an amenable number.

1321441033313 is a deficient number, since it is larger than the sum of its proper divisors (77759395495).

1321441033313 is a wasteful number, since it uses less digits than its factorization.

1321441033313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531683.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 1321441033313 its reverse (3133301441231), we get a palindrome (4454742474544).

The spelling of 1321441033313 in words is "one trillion, three hundred twenty-one billion, four hundred forty-one million, thirty-three thousand, three hundred thirteen".