201340334420 has 48 divisors (see below), whose sum is σ = 441360949008. Its totient is φ = 77074882560.

The previous prime is 201340334417. The next prime is 201340334443. The reversal of 201340334420 is 24433043102.

It can be written as a sum of positive squares in 8 ways, for example, as 7285988164 + 194054346256 = 85358^2 + 440516^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201340334420.

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, 2185037 + ... + 2275316.

It is an arithmetic number, because the mean of its divisors is an integer number (9195019771).

Almost surely, 2^201340334420 is an apocalyptic number.

201340334420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201340334420 is an abundant number, since it is smaller than the sum of its proper divisors (240020614588).

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

201340334420 is a wasteful number, since it uses less digits than its factorization.

201340334420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460460 (or 4460458 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 201340334420 its reverse (24433043102), we get a palindrome (225773377522).

The spelling of 201340334420 in words is "two hundred one billion, three hundred forty million, three hundred thirty-four thousand, four hundred twenty".