23313042332440 has 256 divisors, whose sum is σ = 64362497875200. Its totient is φ = 7417640779776.

The previous prime is 23313042332431. The next prime is 23313042332449. The reversal of 23313042332440 is 4423324031332.

It is an interprime number because it is at equal distance from previous prime (23313042332431) and next prime (23313042332449).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 23313042332396 and 23313042332405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313042332449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1532031712 + ... + 1532046928.

It is an arithmetic number, because the mean of its divisors is an integer number (251416007325).

Almost surely, 2^{23313042332440} is an apocalyptic number.

23313042332440 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 23313042332440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32181248937600).

23313042332440 is an abundant number, since it is smaller than the sum of its proper divisors (41049455542760).

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

23313042332440 is a wasteful number, since it uses less digits than its factorization.

23313042332440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19734 (or 19730 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 23313042332440 its reverse (4423324031332), we get a palindrome (27736366363772).

The spelling of 23313042332440 in words is "twenty-three trillion, three hundred thirteen billion, forty-two million, three hundred thirty-two thousand, four hundred forty".