23032201320 has 96 divisors (see below), whose sum is σ = 74985061320. Its totient is φ = 6131220480.

The previous prime is 23032201279. The next prime is 23032201321. The reversal of 23032201320 is 2310223032.

It is a happy number.

23032201320 is a `hidden beast` number, since 23 + 0 + 322 + 0 + 1 + 320 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22994083044 + 38118276 = 151638^2 + 6174^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23032201293 and 23032201302.

It is not an unprimeable number, because it can be changed into a prime (23032201321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152280 + ... + 263160.

Almost surely, 2^23032201320 is an apocalyptic number.

23032201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23032201320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37492530660).

23032201320 is an abundant number, since it is smaller than the sum of its proper divisors (51952860000).

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

23032201320 is a wasteful number, since it uses less digits than its factorization.

23032201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111475 (or 111468 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23032201320 its reverse (2310223032), we get a palindrome (25342424352).

The spelling of 23032201320 in words is "twenty-three billion, thirty-two million, two hundred one thousand, three hundred twenty".