1001121313013 has 4 divisors (see below), whose sum is σ = 1006362786048. Its totient is φ = 995879839980.

The previous prime is 1001121312979. The next prime is 1001121313039. The reversal of 1001121313013 is 3103131211001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1001121313013 - 2¹² = 1001121308917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001121312982 and 1001121313000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001121312013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2620736231 + ... + 2620736612.

It is an arithmetic number, because the mean of its divisors is an integer number (251590696512).

Almost surely, 2^{1001121313013} is an apocalyptic number.

It is an amenable number.

1001121313013 is a deficient number, since it is larger than the sum of its proper divisors (5241473035).

1001121313013 is an equidigital number, since it uses as much as digits as its factorization.

1001121313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241473034.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1001121313013 its reverse (3103131211001), we get a palindrome (4104252524014).

The spelling of 1001121313013 in words is "one trillion, one billion, one hundred twenty-one million, three hundred thirteen thousand, thirteen".