23105534335123 has 4 divisors (see below), whose sum is σ = 23105544300360. Its totient is φ = 23105524369888.

The previous prime is 23105534335069. The next prime is 23105534335249. The reversal of 23105534335123 is 32153343550132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23105534335123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23105534332123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523536 + ... + 6818002.

It is an arithmetic number, because the mean of its divisors is an integer number (5776386075090).

Almost surely, 2^{23105534335123} is an apocalyptic number.

23105534335123 is a deficient number, since it is larger than the sum of its proper divisors (9965237).

23105534335123 is an equidigital number, since it uses as much as digits as its factorization.

23105534335123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965236.

The product of its (nonzero) digits is 486000, while the sum is 40.

Adding to 23105534335123 its reverse (32153343550132), we get a palindrome (55258877885255).

The spelling of 23105534335123 in words is "twenty-three trillion, one hundred five billion, five hundred thirty-four million, three hundred thirty-five thousand, one hundred twenty-three".