1131210204 has 12 divisors (see below), whose sum is σ = 2639490504. Its totient is φ = 377070064.

The previous prime is 1131210193. The next prime is 1131210247. The reversal of 1131210204 is 4020121311.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47133747 + ... + 47133770.

It is an arithmetic number, because the mean of its divisors is an integer number (219957542).

Almost surely, 2^1131210204 is an apocalyptic number.

It is an amenable number.

1131210204 is an abundant number, since it is smaller than the sum of its proper divisors (1508280300).

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

1131210204 is a wasteful number, since it uses less digits than its factorization.

1131210204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94267524 (or 94267522 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1131210204 is about 33633.4685098043. The cubic root of 1131210204 is about 1041.9521408704.

Adding to 1131210204 its reverse (4020121311), we get a palindrome (5151331515).

The spelling of 1131210204 in words is "one billion, one hundred thirty-one million, two hundred ten thousand, two hundred four".