201203402504 has 64 divisors (see below), whose sum is σ = 409342127040. Its totient is φ = 92164204800.

The previous prime is 201203402441. The next prime is 201203402531. The reversal of 201203402504 is 405204302102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201203402504.

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, 10551779 + ... + 10570829.

It is an arithmetic number, because the mean of its divisors is an integer number (6395970735).

Almost surely, 2^201203402504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201203402504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204671063520).

201203402504 is an abundant number, since it is smaller than the sum of its proper divisors (208138724536).

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

201203402504 is a wasteful number, since it uses less digits than its factorization.

201203402504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19830 (or 19826 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 201203402504 its reverse (405204302102), we get a palindrome (606407704606).

The spelling of 201203402504 in words is "two hundred one billion, two hundred three million, four hundred two thousand, five hundred four".