23534434031345 has 4 divisors (see below), whose sum is σ = 28241320837620. Its totient is φ = 18827547225072.

The previous prime is 23534434031231. The next prime is 23534434031351. The reversal of 23534434031345 is 54313043443532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5638454458849 + 17895979572496 = 2374543^2 + 4230364^2 .

It is a cyclic number.

It is not a de Polignac number, because 23534434031345 - 2²⁰ = 23534432982769 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23534434031296 and 23534434031305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353443403130 + ... + 2353443403139.

It is an arithmetic number, because the mean of its divisors is an integer number (7060330209405).

Almost surely, 2^{23534434031345} is an apocalyptic number.

It is an amenable number.

23534434031345 is a deficient number, since it is larger than the sum of its proper divisors (4706886806275).

23534434031345 is an equidigital number, since it uses as much as digits as its factorization.

23534434031345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706886806274.

The product of its (nonzero) digits is 3110400, while the sum is 44.

Adding to 23534434031345 its reverse (54313043443532), we get a palindrome (77847477474877).

The spelling of 23534434031345 in words is "twenty-three trillion, five hundred thirty-four billion, four hundred thirty-four million, thirty-one thousand, three hundred forty-five".