23321031424 has 72 divisors (see below), whose sum is σ = 49705108992. Its totient is φ = 10894033920.

The previous prime is 23321031407. The next prime is 23321031491. The reversal of 23321031424 is 42413012332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207129 + ... + 299239.

It is an arithmetic number, because the mean of its divisors is an integer number (690348736).

Almost surely, 2^23321031424 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 23321031424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24852554496).

23321031424 is an abundant number, since it is smaller than the sum of its proper divisors (26384077568).

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

23321031424 is an equidigital number, since it uses as much as digits as its factorization.

23321031424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92193 (or 92179 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23321031424 its reverse (42413012332), we get a palindrome (65734043756).

The spelling of 23321031424 in words is "twenty-three billion, three hundred twenty-one million, thirty-one thousand, four hundred twenty-four".