201211301040 has 80 divisors (see below), whose sum is σ = 624056034048. Its totient is φ = 53630454528.

The previous prime is 201211301023. The next prime is 201211301041. The reversal of 201211301040 is 40103112102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (201211301041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298677 + ... + 701163.

Almost surely, 2^201211301040 is an apocalyptic number.

201211301040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201211301040 is an abundant number, since it is smaller than the sum of its proper divisors (422844733008).

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

201211301040 is a wasteful number, since it uses less digits than its factorization.

201211301040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404586 (or 404580 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201211301040 its reverse (40103112102), we get a palindrome (241314413142).

The spelling of 201211301040 in words is "two hundred one billion, two hundred eleven million, three hundred one thousand, forty".