1001121310013 has 16 divisors (see below), whose sum is σ = 1113236156736. Its totient is φ = 892539123840.

The previous prime is 1001121310001. The next prime is 1001121310043. The reversal of 1001121310013 is 3100131211001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1001121310013 - 2²⁰ = 1001120261437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001121310013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001121310043) 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, 924881 + ... + 1690457.

It is an arithmetic number, because the mean of its divisors is an integer number (69577259796).

Almost surely, 2^{1001121310013} is an apocalyptic number.

It is an amenable number.

1001121310013 is a deficient number, since it is larger than the sum of its proper divisors (112114846723).

1001121310013 is a wasteful number, since it uses less digits than its factorization.

1001121310013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767884.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1001121310013 its reverse (3100131211001), we get a palindrome (4101252521014).

The spelling of 1001121310013 in words is "one trillion, one billion, one hundred twenty-one million, three hundred ten thousand, thirteen".