23130321232 has 60 divisors (see below), whose sum is σ = 47545180500. Its totient is φ = 10899173376.

The previous prime is 23130321217. The next prime is 23130321281. The reversal of 23130321232 is 23212303132.

It can be written as a sum of positive squares in 2 ways, for example, as 2585112336 + 20545208896 = 50844^2 + 143336^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1104394 + ... + 1125142.

It is an arithmetic number, because the mean of its divisors is an integer number (792419675).

Almost surely, 2^23130321232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23130321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23772590250).

23130321232 is an abundant number, since it is smaller than the sum of its proper divisors (24414859268).

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

23130321232 is a wasteful number, since it uses less digits than its factorization.

23130321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20988 (or 20963 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23130321232 its reverse (23212303132), we get a palindrome (46342624364).

The spelling of 23130321232 in words is "twenty-three billion, one hundred thirty million, three hundred twenty-one thousand, two hundred thirty-two".