1001231213313 has 8 divisors (see below), whose sum is σ = 1347451352928. Its totient is φ = 661249274624.

The previous prime is 1001231213219. The next prime is 1001231213317. The reversal of 1001231213313 is 3133121321001.

It is a happy number.

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 1001231213313 - 2⁸ = 1001231213057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001231213313.

It is not an unprimeable number, because it can be changed into a prime (1001231213317) 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, 1559549856 + ... + 1559550497.

It is an arithmetic number, because the mean of its divisors is an integer number (168431419116).

Almost surely, 2^{1001231213313} is an apocalyptic number.

It is an amenable number.

1001231213313 is a deficient number, since it is larger than the sum of its proper divisors (346220139615).

1001231213313 is a wasteful number, since it uses less digits than its factorization.

1001231213313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119100463.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1001231213313 its reverse (3133121321001), we get a palindrome (4134352534314).

The spelling of 1001231213313 in words is "one trillion, one billion, two hundred thirty-one million, two hundred thirteen thousand, three hundred thirteen".