201432121134 has 128 divisors (see below), whose sum is σ = 461729548800. Its totient is φ = 58176921600.

The previous prime is 201432121103. The next prime is 201432121139. The reversal of 201432121134 is 431121234102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201432121139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86117737 + ... + 86120075.

It is an arithmetic number, because the mean of its divisors is an integer number (3607262100).

Almost surely, 2^201432121134 is an apocalyptic number.

201432121134 is an abundant number, since it is smaller than the sum of its proper divisors (260297427666).

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

201432121134 is a wasteful number, since it uses less digits than its factorization.

201432121134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 201432121134 its reverse (431121234102), we get a palindrome (632553355236).

The spelling of 201432121134 in words is "two hundred one billion, four hundred thirty-two million, one hundred twenty-one thousand, one hundred thirty-four".