11413231321 has 4 divisors (see below), whose sum is σ = 11417040000. Its totient is φ = 11409422644.

The previous prime is 11413231303. The next prime is 11413231339. The reversal of 11413231321 is 12313231411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11413231303) and next prime (11413231339).

It is a cyclic number.

It is not a de Polignac number, because 11413231321 - 2⁵ = 11413231289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11413231292 and 11413231301.

It is not an unprimeable number, because it can be changed into a prime (11413231021) 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, 1899841 + ... + 1905838.

It is an arithmetic number, because the mean of its divisors is an integer number (2854260000).

Almost surely, 2^11413231321 is an apocalyptic number.

It is an amenable number.

11413231321 is a deficient number, since it is larger than the sum of its proper divisors (3808679).

11413231321 is an equidigital number, since it uses as much as digits as its factorization.

11413231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808678.

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

Adding to 11413231321 its reverse (12313231411), we get a palindrome (23726462732).

The spelling of 11413231321 in words is "eleven billion, four hundred thirteen million, two hundred thirty-one thousand, three hundred twenty-one".