201244431140 has 48 divisors (see below), whose sum is σ = 426892032000. Its totient is φ = 79685609472.

The previous prime is 201244431139. The next prime is 201244431161. The reversal of 201244431140 is 41134442102.

201244431140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 1052231 + ... + 1228689.

It is an arithmetic number, because the mean of its divisors is an integer number (8893584000).

Almost surely, 2^201244431140 is an apocalyptic number.

201244431140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201244431140 is an abundant number, since it is smaller than the sum of its proper divisors (225647600860).

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

201244431140 is a wasteful number, since it uses less digits than its factorization.

201244431140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177044 (or 177042 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 201244431140 its reverse (41134442102), we get a palindrome (242378873242).

The spelling of 201244431140 in words is "two hundred one billion, two hundred forty-four million, four hundred thirty-one thousand, one hundred forty".