11302232021 has 4 divisors (see below), whose sum is σ = 11302448844. Its totient is φ = 11302015200.

The previous prime is 11302231981. The next prime is 11302232027. The reversal of 11302232021 is 12023220311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12023220311 = 19 ⋅632801069.

It can be written as a sum of positive squares in 2 ways, for example, as 5758684996 + 5543547025 = 75886^2 + 74455^2 .

It is a cyclic number.

It is not a de Polignac number, because 11302232021 - 2⁶ = 11302231957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11302232027) 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, 22361 + ... + 152001.

It is an arithmetic number, because the mean of its divisors is an integer number (2825612211).

Almost surely, 2^11302232021 is an apocalyptic number.

It is an amenable number.

11302232021 is a deficient number, since it is larger than the sum of its proper divisors (216823).

11302232021 is an equidigital number, since it uses as much as digits as its factorization.

11302232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216822.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11302232021 its reverse (12023220311), we get a palindrome (23325452332).

The spelling of 11302232021 in words is "eleven billion, three hundred two million, two hundred thirty-two thousand, twenty-one".