201340412121 has 12 divisors (see below), whose sum is σ = 268894037328. Its totient is φ = 134007223824.

The previous prime is 201340412113. The next prime is 201340412129. The reversal of 201340412121 is 121214043102.

201340412121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201340412113) and next prime (201340412129).

It is not a de Polignac number, because 201340412121 - 2³ = 201340412113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201340412129) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1038006 + ... + 1216608.

It is an arithmetic number, because the mean of its divisors is an integer number (22407836444).

Almost surely, 2^201340412121 is an apocalyptic number.

It is an amenable number.

201340412121 is a deficient number, since it is larger than the sum of its proper divisors (67553625207).

201340412121 is an frugal number, since it uses more digits than its factorization.

201340412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179832 (or 179219 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 201340412121 its reverse (121214043102), we get a palindrome (322554455223).

The spelling of 201340412121 in words is "two hundred one billion, three hundred forty million, four hundred twelve thousand, one hundred twenty-one".