201240322134 has 32 divisors (see below), whose sum is σ = 403937259264. Its totient is φ = 66837433440.

The previous prime is 201240322133. The next prime is 201240322139. The reversal of 201240322134 is 431223042102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201240322133) 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, 12091999 + ... + 12108629.

It is an arithmetic number, because the mean of its divisors is an integer number (12623039352).

Almost surely, 2^201240322134 is an apocalyptic number.

201240322134 is an abundant number, since it is smaller than the sum of its proper divisors (202696937130).

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

201240322134 is a wasteful number, since it uses less digits than its factorization.

201240322134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23812.

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

Adding to 201240322134 its reverse (431223042102), we get a palindrome (632463364236).

The spelling of 201240322134 in words is "two hundred one billion, two hundred forty million, three hundred twenty-two thousand, one hundred thirty-four".