23543312340 has 48 divisors (see below), whose sum is σ = 67001961600. Its totient is φ = 6175294080.

The previous prime is 23543312339. The next prime is 23543312423. The reversal of 23543312340 is 4321334532.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23543312298 and 23543312307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212640 + ... + 3219959.

It is an arithmetic number, because the mean of its divisors is an integer number (1395874200).

Almost surely, 2^23543312340 is an apocalyptic number.

23543312340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23543312340 is an abundant number, since it is smaller than the sum of its proper divisors (43458649260).

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

23543312340 is a wasteful number, since it uses less digits than its factorization.

23543312340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6432672 (or 6432670 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 23543312340 its reverse (4321334532), we get a palindrome (27864646872).

The spelling of 23543312340 in words is "twenty-three billion, five hundred forty-three million, three hundred twelve thousand, three hundred forty".