11023203213121 has 6 divisors (see below), whose sum is σ = 12116413449266. Its totient is φ = 10021093830000.

The previous prime is 11023203213083. The next prime is 11023203213151. The reversal of 11023203213121 is 12131230232011.

It can be written as a sum of positive squares in only one way, i.e., 10768012546225 + 255190666896 = 3281465^2 + 505164^2 .

It is not a de Polignac number, because 11023203213121 - 2¹⁷ = 11023203082049 is a prime.

It is a super-2 number, since 2×11023203213121² (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 = 11023203213092 and 11023203213101.

It is not an unprimeable number, because it can be changed into a prime (11023203213151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45550426380 + ... + 45550426621.

Almost surely, 2^{11023203213121} is an apocalyptic number.

11023203213121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11023203213121 is a deficient number, since it is larger than the sum of its proper divisors (1093210236145).

11023203213121 is an equidigital number, since it uses as much as digits as its factorization.

11023203213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91100853023 (or 91100853012 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11023203213121 its reverse (12131230232011), we get a palindrome (23154433445132).

The spelling of 11023203213121 in words is "eleven trillion, twenty-three billion, two hundred three million, two hundred thirteen thousand, one hundred twenty-one".