11013121011031 has 4 divisors (see below), whose sum is σ = 11592758959000. Its totient is φ = 10433483063064.

The previous prime is 11013121010953. The next prime is 11013121011041. The reversal of 11013121011031 is 13011012131011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11013121011031 - 2¹⁹ = 11013120486743 is a prime.

It is a super-2 number, since 2×11013121011031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11013121010996 and 11013121011014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013121011041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289818973956 + ... + 289818973993.

It is an arithmetic number, because the mean of its divisors is an integer number (2898189739750).

Almost surely, 2^{11013121011031} is an apocalyptic number.

11013121011031 is a deficient number, since it is larger than the sum of its proper divisors (579637947969).

11013121011031 is an equidigital number, since it uses as much as digits as its factorization.

11013121011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579637947968.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 11013121011031 its reverse (13011012131011), we get a palindrome (24024133142042).

The spelling of 11013121011031 in words is "eleven trillion, thirteen billion, one hundred twenty-one million, eleven thousand, thirty-one".