11323021361 has 8 divisors (see below), whose sum is σ = 11537369448. Its totient is φ = 11109600000.

The previous prime is 11323021357. The next prime is 11323021379. The reversal of 11323021361 is 16312032311.

It can be written as a sum of positive squares in 4 ways, for example, as 2856261136 + 8466760225 = 53444^2 + 92015^2 .

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 11323021361 - 2² = 11323021357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11323021321) 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, 206990 + ... + 255911.

It is an arithmetic number, because the mean of its divisors is an integer number (1442171181).

Almost surely, 2^11323021361 is an apocalyptic number.

It is an amenable number.

11323021361 is a deficient number, since it is larger than the sum of its proper divisors (214348087).

11323021361 is an equidigital number, since it uses as much as digits as its factorization.

11323021361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463363.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11323021361 its reverse (16312032311), we get a palindrome (27635053672).

The spelling of 11323021361 in words is "eleven billion, three hundred twenty-three million, twenty-one thousand, three hundred sixty-one".