201244000042 has 16 divisors (see below), whose sum is σ = 302090817600. Its totient is φ = 100547092800.

The previous prime is 201244000019. The next prime is 201244000079. The reversal of 201244000042 is 240000442102.

It is a junction number, because it is equal to n+sod(n) for n = 201243999983 and 201244000019.

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 7 ways as a sum of consecutive naturals, for example, 23156434 + ... + 23165122.

It is an arithmetic number, because the mean of its divisors is an integer number (18880676100).

Almost surely, 2^201244000042 is an apocalyptic number.

201244000042 is a deficient number, since it is larger than the sum of its proper divisors (100846817558).

201244000042 is a wasteful number, since it uses less digits than its factorization.

201244000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15981.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 201244000042 its reverse (240000442102), we get a palindrome (441244442144).

The spelling of 201244000042 in words is "two hundred one billion, two hundred forty-four million, forty-two", and thus it is an aban number.