23131260 has 72 divisors (see below), whose sum is σ = 70879536. Its totient is φ = 6105600.

The previous prime is 23131249. The next prime is 23131289. The reversal of 23131260 is 6213132.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18660 + ... + 19860.

It is an arithmetic number, because the mean of its divisors is an integer number (984438).

Almost surely, 2^23131260 is an apocalyptic number.

23131260 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 23131260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35439768).

23131260 is an abundant number, since it is smaller than the sum of its proper divisors (47748276).

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

23131260 is a wasteful number, since it uses less digits than its factorization.

23131260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 23131260 is about 4809.4968551814. The cubic root of 23131260 is about 284.9266662659.

Adding to 23131260 its reverse (6213132), we get a palindrome (29344392).

The spelling of 23131260 in words is "twenty-three million, one hundred thirty-one thousand, two hundred sixty".