9123112320 has 512 divisors, whose sum is σ = 34898688000. Its totient is φ = 1983184896.

The previous prime is 9123112301. The next prime is 9123112321. The reversal of 9123112320 is 232113219.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9123112321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34688509 + ... + 34688771.

It is an arithmetic number, because the mean of its divisors is an integer number (68161500).

Almost surely, 2^9123112320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9123112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17449344000).

9123112320 is an abundant number, since it is smaller than the sum of its proper divisors (25775575680).

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

9123112320 is a wasteful number, since it uses less digits than its factorization.

9123112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 9123112320 is about 95514.9847929632. The cubic root of 9123112320 is about 2089.5254922711.

Adding to 9123112320 its reverse (232113219), we get a palindrome (9355225539).

The spelling of 9123112320 in words is "nine billion, one hundred twenty-three million, one hundred twelve thousand, three hundred twenty".