201343012440 has 64 divisors (see below), whose sum is σ = 604326009600. Its totient is φ = 53665072512.

The previous prime is 201343012417. The next prime is 201343012469. The reversal of 201343012440 is 44210343102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 201343012440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166762 + ... + 656121.

It is an arithmetic number, because the mean of its divisors is an integer number (9442593900).

Almost surely, 2^201343012440 is an apocalyptic number.

201343012440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201343012440 is an abundant number, since it is smaller than the sum of its proper divisors (402982997160).

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

201343012440 is a wasteful number, since it uses less digits than its factorization.

201343012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824936 (or 824932 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 201343012440 its reverse (44210343102), we get a palindrome (245553355542).

The spelling of 201343012440 in words is "two hundred one billion, three hundred forty-three million, twelve thousand, four hundred forty".