2311323321 has 8 divisors (see below), whose sum is σ = 3127761184. Its totient is φ = 1517883840.

The previous prime is 2311323293. The next prime is 2311323323. The reversal of 2311323321 is 1233231132.

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

It is not a de Polignac number, because 2311323321 - 2⁹ = 2311322809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311323323) 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 7 ways as a sum of consecutive naturals, for example, 5749360 + ... + 5749761.

It is an arithmetic number, because the mean of its divisors is an integer number (390970148).

Almost surely, 2^2311323321 is an apocalyptic number.

It is an amenable number.

2311323321 is a deficient number, since it is larger than the sum of its proper divisors (816437863).

2311323321 is a wasteful number, since it uses less digits than its factorization.

2311323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499191.

The product of its digits is 648, while the sum is 21.

The square root of 2311323321 is about 48076.2240717800. The cubic root of 2311323321 is about 1322.1687871887.

Adding to 2311323321 its reverse (1233231132), we get a palindrome (3544554453).

The spelling of 2311323321 in words is "two billion, three hundred eleven million, three hundred twenty-three thousand, three hundred twenty-one".