23543430145 has 8 divisors (see below), whose sum is σ = 28267936704. Its totient is φ = 18824197104.

The previous prime is 23543430121. The next prime is 23543430149. The reversal of 23543430145 is 54103434532.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23543430145 - 2²⁵ = 23509875713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23543430145.

It is not an unprimeable number, because it can be changed into a prime (23543430149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308549 + ... + 1326418.

It is an arithmetic number, because the mean of its divisors is an integer number (3533492088).

Almost surely, 2^23543430145 is an apocalyptic number.

It is an amenable number.

23543430145 is a deficient number, since it is larger than the sum of its proper divisors (4724506559).

23543430145 is a wasteful number, since it uses less digits than its factorization.

23543430145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636759.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 23543430145 its reverse (54103434532), we get a palindrome (77646864677).

The spelling of 23543430145 in words is "twenty-three billion, five hundred forty-three million, four hundred thirty thousand, one hundred forty-five".