10001232320 has 56 divisors (see below), whose sum is σ = 24636679200. Its totient is φ = 3862541312.

The previous prime is 10001232281. The next prime is 10001232383. The reversal of 10001232320 is 2323210001.

It is a happy number.

It is a super-2 number, since 2×10001232320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001232295 and 10001232304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529580 + ... + 548139.

It is an arithmetic number, because the mean of its divisors is an integer number (439940700).

Almost surely, 2^10001232320 is an apocalyptic number.

10001232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001232320 is an abundant number, since it is smaller than the sum of its proper divisors (14635446880).

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

10001232320 is a wasteful number, since it uses less digits than its factorization.

10001232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077765 (or 1077755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10001232320 its reverse (2323210001), we get a palindrome (12324442321).

The spelling of 10001232320 in words is "ten billion, one million, two hundred thirty-two thousand, three hundred twenty".