23312323042440 has 256 divisors, whose sum is σ = 73290627360000. Its totient is φ = 5924337205248.

The previous prime is 23312323042433. The next prime is 23312323042471. The reversal of 23312323042440 is 4424032321332.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 176164539 + ... + 176296821.

It is an arithmetic number, because the mean of its divisors is an integer number (286291513125).

Almost surely, 2^{23312323042440} is an apocalyptic number.

23312323042440 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 23312323042440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36645313680000).

23312323042440 is an abundant number, since it is smaller than the sum of its proper divisors (49978304317560).

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

23312323042440 is a wasteful number, since it uses less digits than its factorization.

23312323042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132984 (or 132980 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 23312323042440 its reverse (4424032321332), we get a palindrome (27736355363772).

The spelling of 23312323042440 in words is "twenty-three trillion, three hundred twelve billion, three hundred twenty-three million, forty-two thousand, four hundred forty".