7123216320 has 672 divisors, whose sum is σ = 28186928640. Its totient is φ = 1635655680.

The previous prime is 7123216273. The next prime is 7123216333. The reversal of 7123216320 is 236123217.

7123216320 is a `hidden beast` number, since 7 + 1 + 2 + 3 + 21 + 632 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69157389 + ... + 69157491.

Almost surely, 2^7123216320 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 7123216320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14093464320).

7123216320 is an abundant number, since it is smaller than the sum of its proper divisors (21063712320).

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

7123216320 is a wasteful number, since it uses less digits than its factorization.

7123216320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 7123216320 is about 84399.1488108737. The cubic root of 7123216320 is about 1924.0899792665.

Adding to 7123216320 its reverse (236123217), we get a palindrome (7359339537).

The spelling of 7123216320 in words is "seven billion, one hundred twenty-three million, two hundred sixteen thousand, three hundred twenty".