11123313313021 has 32 divisors (see below), whose sum is σ = 13931629689600. Its totient is φ = 8645879485440.

The previous prime is 11123313312989. The next prime is 11123313313121. The reversal of 11123313313021 is 12031331332111.

It is a cyclic number.

It is not a de Polignac number, because 11123313313021 - 2⁵ = 11123313312989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123313313121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7298751 + ... + 8690131.

It is an arithmetic number, because the mean of its divisors is an integer number (435363427800).

Almost surely, 2^{11123313313021} is an apocalyptic number.

It is an amenable number.

11123313313021 is a deficient number, since it is larger than the sum of its proper divisors (2808316376579).

11123313313021 is a wasteful number, since it uses less digits than its factorization.

11123313313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392949.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 11123313313021 its reverse (12031331332111), we get a palindrome (23154644645132).

The spelling of 11123313313021 in words is "eleven trillion, one hundred twenty-three billion, three hundred thirteen million, three hundred thirteen thousand, twenty-one".