201042241434 has 64 divisors (see below), whose sum is σ = 473375145600. Its totient is φ = 63027465984.

The previous prime is 201042241427. The next prime is 201042241459. The reversal of 201042241434 is 434142240102.

201042241434 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 4 + 224 + 1 + 434 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201042241398 and 201042241407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1233252 + ... + 1386720.

It is an arithmetic number, because the mean of its divisors is an integer number (7396486650).

Almost surely, 2^201042241434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201042241434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236687572800).

201042241434 is an abundant number, since it is smaller than the sum of its proper divisors (272332904166).

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

201042241434 is a wasteful number, since it uses less digits than its factorization.

201042241434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154924 (or 154918 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 201042241434 its reverse (434142240102), we get a palindrome (635184481536).

The spelling of 201042241434 in words is "two hundred one billion, forty-two million, two hundred forty-one thousand, four hundred thirty-four".