105423523242 has 32 divisors (see below), whose sum is σ = 215361331200. Its totient is φ = 34388989488.

The previous prime is 105423523193. The next prime is 105423523267. The reversal of 105423523242 is 242325324501.

It is a super-2 number, since 2×105423523242² (a number of 23 digits) contains 22 as substring.

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, 2653359 + ... + 2692797.

It is an arithmetic number, because the mean of its divisors is an integer number (6730041600).

Almost surely, 2^105423523242 is an apocalyptic number.

105423523242 is an abundant number, since it is smaller than the sum of its proper divisors (109937807958).

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

105423523242 is a wasteful number, since it uses less digits than its factorization.

105423523242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48970.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 105423523242 its reverse (242325324501), we get a palindrome (347748847743).

The spelling of 105423523242 in words is "one hundred five billion, four hundred twenty-three million, five hundred twenty-three thousand, two hundred forty-two".