11231001321 has 8 divisors (see below), whose sum is σ = 14975336064. Its totient is φ = 7487000400.

The previous prime is 11231001319. The next prime is 11231001367. The reversal of 11231001321 is 12310013211.

It is a happy number.

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

It is not a de Polignac number, because 11231001321 - 2¹ = 11231001319 is a prime.

It is a super-2 number, since 2×11231001321² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231001321.

It is not an unprimeable number, because it can be changed into a prime (11231001421) 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, 10000 + ... + 150206.

It is an arithmetic number, because the mean of its divisors is an integer number (1871917008).

Almost surely, 2^11231001321 is an apocalyptic number.

It is an amenable number.

11231001321 is a deficient number, since it is larger than the sum of its proper divisors (3744334743).

11231001321 is a wasteful number, since it uses less digits than its factorization.

11231001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166911.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11231001321 its reverse (12310013211), we get a palindrome (23541014532).

The spelling of 11231001321 in words is "eleven billion, two hundred thirty-one million, one thousand, three hundred twenty-one".