23101320 has 192 divisors, whose sum is σ = 80055360. Its totient is φ = 5322240.

The previous prime is 23101301. The next prime is 23101333. The reversal of 23101320 is 2310132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 23101296 and 23101305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537219 + ... + 537261.

It is an arithmetic number, because the mean of its divisors is an integer number (416955).

Almost surely, 2^23101320 is an apocalyptic number.

23101320 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 23101320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40027680).

23101320 is an abundant number, since it is smaller than the sum of its proper divisors (56954040).

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

23101320 is a wasteful number, since it uses less digits than its factorization.

23101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 23101320 is about 4806.3832556300. The cubic root of 23101320 is about 284.8036813584.

Adding to 23101320 its reverse (2310132), we get a palindrome (25411452).

The spelling of 23101320 in words is "twenty-three million, one hundred one thousand, three hundred twenty".