23144320324340 has 24 divisors (see below), whose sum is σ = 48608866700520. Its totient is φ = 9256624507008.

The previous prime is 23144320324331. The next prime is 23144320324381. The reversal of 23144320324340 is 4342302344132.

It can be written as a sum of positive squares in 4 ways, for example, as 8920998134416 + 14223322189924 = 2986804^2 + 3771382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23144320324340.

It is a congruent number.

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, 68804447 + ... + 69140006.

It is an arithmetic number, because the mean of its divisors is an integer number (2025369445855).

Almost surely, 2^{23144320324340} is an apocalyptic number.

23144320324340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23144320324340 is an abundant number, since it is smaller than the sum of its proper divisors (25464546376180).

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

23144320324340 is a wasteful number, since it uses less digits than its factorization.

23144320324340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137952851 (or 137952849 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 23144320324340 its reverse (4342302344132), we get a palindrome (27486622668472).

The spelling of 23144320324340 in words is "twenty-three trillion, one hundred forty-four billion, three hundred twenty million, three hundred twenty-four thousand, three hundred forty".