201243135025104 has 40 divisors (see below), whose sum is σ = 519882200112000. Its totient is φ = 67080515808768.

The previous prime is 201243135025103. The next prime is 201243135025133. The reversal of 201243135025104 is 401520531342102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201243135025103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10365912 + ... + 22581815.

It is an arithmetic number, because the mean of its divisors is an integer number (12997055002800).

Almost surely, 2^{201243135025104} is an apocalyptic number.

201243135025104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201243135025104 is an abundant number, since it is smaller than the sum of its proper divisors (318639065086896).

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

201243135025104 is a wasteful number, since it uses less digits than its factorization.

201243135025104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33074987 (or 33074981 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 201243135025104 its reverse (401520531342102), we get a palindrome (602763666367206).

The spelling of 201243135025104 in words is "two hundred one trillion, two hundred forty-three billion, one hundred thirty-five million, twenty-five thousand, one hundred four".