201000001240 has 32 divisors (see below), whose sum is σ = 452895215760. Its totient is φ = 80285296000.

The previous prime is 201000001193. The next prime is 201000001259. The reversal of 201000001240 is 42100000102.

201000001240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3556126 + ... + 3612205.

Almost surely, 2^201000001240 is an apocalyptic number.

201000001240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000001240 is an abundant number, since it is smaller than the sum of its proper divisors (251895214520).

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

201000001240 is a wasteful number, since it uses less digits than its factorization.

201000001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169043 (or 7169039 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 201000001240 its reverse (42100000102), we get a palindrome (243100001342).

The spelling of 201000001240 in words is "two hundred one billion, one thousand, two hundred forty".