2311323000 has 128 divisors (see below), whose sum is σ = 8241592320. Its totient is φ = 528297600.

The previous prime is 2311322983. The next prime is 2311323023. The reversal of 2311323000 is 3231132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34032 + ... + 76031.

It is an arithmetic number, because the mean of its divisors is an integer number (64387440).

Almost surely, 2^2311323000 is an apocalyptic number.

2311323000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311323000 is an abundant number, since it is smaller than the sum of its proper divisors (5930269320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311323000 is a wasteful number, since it uses less digits than its factorization.

2311323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110094 (or 110080 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2311323000 is about 48076.2207333314. The cubic root of 2311323000 is about 1322.1687259805.

Adding to 2311323000 its reverse (3231132), we get a palindrome (2314554132).

It can be divided in two parts, 231 and 1323000, that added together give a palindrome (1323231).

The spelling of 2311323000 in words is "two billion, three hundred eleven million, three hundred twenty-three thousand".