201024343242 has 128 divisors (see below), whose sum is σ = 469502853120. Its totient is φ = 63688567680.

The previous prime is 201024343231. The next prime is 201024343243. The reversal of 201024343242 is 242343420102.

201024343242 is a `hidden beast` number, since 201 + 0 + 2 + 434 + 3 + 24 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201024343243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23200603 + ... + 23209265.

It is an arithmetic number, because the mean of its divisors is an integer number (3667991040).

Almost surely, 2^201024343242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201024343242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234751426560).

201024343242 is an abundant number, since it is smaller than the sum of its proper divisors (268478509878).

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

201024343242 is a wasteful number, since it uses less digits than its factorization.

201024343242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985 (or 8979 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201024343242 its reverse (242343420102), we get a palindrome (443367763344).

The spelling of 201024343242 in words is "two hundred one billion, twenty-four million, three hundred forty-three thousand, two hundred forty-two".