123364564242 has 8 divisors (see below), whose sum is σ = 246729128496. Its totient is φ = 41121521412.

The previous prime is 123364564187. The next prime is 123364564243. The reversal of 123364564242 is 242465463321.

It is a happy number.

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

123364564242 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 123364564194 and 123364564203.

It is not an unprimeable number, because it can be changed into a prime (123364564243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10280380348 + ... + 10280380359.

It is an arithmetic number, because the mean of its divisors is an integer number (30841141062).

Almost surely, 2^123364564242 is an apocalyptic number.

123364564242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123364564242 is a wasteful number, since it uses less digits than its factorization.

123364564242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20560760712.

The product of its digits is 829440, while the sum is 42.

The spelling of 123364564242 in words is "one hundred twenty-three billion, three hundred sixty-four million, five hundred sixty-four thousand, two hundred forty-two".