23105201355 has 24 divisors (see below), whose sum is σ = 40099327632. Its totient is φ = 12307293504.

The previous prime is 23105201303. The next prime is 23105201359. The reversal of 23105201355 is 55310250132.

It is a happy number.

23105201355 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 520 + 135 + 5 = 666.

It is not a de Polignac number, because 23105201355 - 2⁷ = 23105201227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23105201359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286249 + ... + 357978.

It is an arithmetic number, because the mean of its divisors is an integer number (1670805318).

Almost surely, 2^23105201355 is an apocalyptic number.

23105201355 is a deficient number, since it is larger than the sum of its proper divisors (16994126277).

23105201355 is a wasteful number, since it uses less digits than its factorization.

23105201355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645035 (or 645032 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 23105201355 its reverse (55310250132), we get a palindrome (78415451487).

The spelling of 23105201355 in words is "twenty-three billion, one hundred five million, two hundred one thousand, three hundred fifty-five".