11353423121 has 8 divisors (see below), whose sum is σ = 11786725800. Its totient is φ = 10922907520.

The previous prime is 11353423111. The next prime is 11353423141. The reversal of 11353423121 is 12132435311.

It can be written as a sum of positive squares in 4 ways, for example, as 267649600 + 11085773521 = 16360^2 + 105289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11353423121 - 2¹⁸ = 11353160977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11353423111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688466 + ... + 704763.

It is an arithmetic number, because the mean of its divisors is an integer number (1473340725).

Almost surely, 2^11353423121 is an apocalyptic number.

It is an amenable number.

11353423121 is a deficient number, since it is larger than the sum of its proper divisors (433302679).

11353423121 is a wasteful number, since it uses less digits than its factorization.

11353423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393539.

The product of its digits is 2160, while the sum is 26.

Adding to 11353423121 its reverse (12132435311), we get a palindrome (23485858432).

The spelling of 11353423121 in words is "eleven billion, three hundred fifty-three million, four hundred twenty-three thousand, one hundred twenty-one".