11113021024121 has 4 divisors (see below), whose sum is σ = 11113280759412. Its totient is φ = 11112761288832.

The previous prime is 11113021024093. The next prime is 11113021024123. The reversal of 11113021024121 is 12142012031111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2827627218025 + 8285393806096 = 1681555^2 + 2878436^2 .

It is a cyclic number.

It is not a de Polignac number, because 11113021024121 - 2³⁰ = 11111947282297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113021024093 and 11113021024102.

It is not an unprimeable number, because it can be changed into a prime (11113021024123) 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, 129803456 + ... + 129889041.

It is an arithmetic number, because the mean of its divisors is an integer number (2778320189853).

Almost surely, 2^{11113021024121} is an apocalyptic number.

It is an amenable number.

11113021024121 is a deficient number, since it is larger than the sum of its proper divisors (259735291).

11113021024121 is an equidigital number, since it uses as much as digits as its factorization.

11113021024121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259735290.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11113021024121 its reverse (12142012031111), we get a palindrome (23255033055232).

The spelling of 11113021024121 in words is "eleven trillion, one hundred thirteen billion, twenty-one million, twenty-four thousand, one hundred twenty-one".