201242011240 has 192 divisors, whose sum is σ = 478956499200. Its totient is φ = 76037584896.

The previous prime is 201242011237. The next prime is 201242011253. The reversal of 201242011240 is 42110242102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 530981371 + ... + 530981749.

It is an arithmetic number, because the mean of its divisors is an integer number (2494565100).

Almost surely, 2^201242011240 is an apocalyptic number.

201242011240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201242011240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239478249600).

201242011240 is an abundant number, since it is smaller than the sum of its proper divisors (277714487960).

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

201242011240 is a wasteful number, since it uses less digits than its factorization.

201242011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201242011240 its reverse (42110242102), we get a palindrome (243352253342).

The spelling of 201242011240 in words is "two hundred one billion, two hundred forty-two million, eleven thousand, two hundred forty".