1321033010013 has 16 divisors (see below), whose sum is σ = 1960976787840. Its totient is φ = 878937792192.

The previous prime is 1321033009957. The next prime is 1321033010041. The reversal of 1321033010013 is 3100103301231.

It is a happy number.

1321033010013 is a `hidden beast` number, since 1 + 321 + 0 + 330 + 1 + 0 + 0 + 13 = 666.

It is not a de Polignac number, because 1321033010013 - 2⁸ = 1321033009757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321033010513) 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, 48621756 + ... + 48648917.

It is an arithmetic number, because the mean of its divisors is an integer number (122561049240).

Almost surely, 2^{1321033010013} is an apocalyptic number.

It is an amenable number.

1321033010013 is a deficient number, since it is larger than the sum of its proper divisors (639943777827).

1321033010013 is an equidigital number, since it uses as much as digits as its factorization.

1321033010013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97271185 (or 97271179 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1321033010013 its reverse (3100103301231), we get a palindrome (4421136311244).

The spelling of 1321033010013 in words is "one trillion, three hundred twenty-one billion, thirty-three million, ten thousand, thirteen".