201443432140 has 48 divisors (see below), whose sum is σ = 440206018560. Its totient is φ = 77369503680.

The previous prime is 201443432117. The next prime is 201443432147. The reversal of 201443432140 is 41234344102.

201443432140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201443432099 and 201443432108.

It is not an unprimeable number, because it can be changed into a prime (201443432147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1934316 + ... + 2035795.

It is an arithmetic number, because the mean of its divisors is an integer number (9170958720).

Almost surely, 2^201443432140 is an apocalyptic number.

201443432140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201443432140 is an abundant number, since it is smaller than the sum of its proper divisors (238762586420).

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

201443432140 is a wasteful number, since it uses less digits than its factorization.

201443432140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970222 (or 3970220 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 201443432140 its reverse (41234344102), we get a palindrome (242677776242).

The spelling of 201443432140 in words is "two hundred one billion, four hundred forty-three million, four hundred thirty-two thousand, one hundred forty".