23113135320 has 128 divisors (see below), whose sum is σ = 76027818240. Its totient is φ = 5574679040.

The previous prime is 23113135267. The next prime is 23113135327. The reversal of 23113135320 is 2353131132.

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 (23113135327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215599 + ... + 304481.

It is an arithmetic number, because the mean of its divisors is an integer number (593967330).

Almost surely, 2^23113135320 is an apocalyptic number.

23113135320 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 23113135320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38013909120).

23113135320 is an abundant number, since it is smaller than the sum of its proper divisors (52914682920).

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

23113135320 is a wasteful number, since it uses less digits than its factorization.

23113135320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89105 (or 89101 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 23113135320 its reverse (2353131132), we get a palindrome (25466266452).

The spelling of 23113135320 in words is "twenty-three billion, one hundred thirteen million, one hundred thirty-five thousand, three hundred twenty".