1211112304 has 20 divisors (see below), whose sum is σ = 2367299376. Its totient is φ = 600196352.

The previous prime is 1211112271. The next prime is 1211112323. The reversal of 1211112304 is 4032111121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333124 + ... + 336739.

Almost surely, 2^1211112304 is an apocalyptic number.

It is an amenable number.

1211112304 is a deficient number, since it is larger than the sum of its proper divisors (1156187072).

1211112304 is a wasteful number, since it uses less digits than its factorization.

1211112304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669984 (or 669978 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1211112304 is about 34801.0388350693. The cubic root of 1211112304 is about 1065.9286584262.

Adding to 1211112304 its reverse (4032111121), we get a palindrome (5243223425).

The spelling of 1211112304 in words is "one billion, two hundred eleven million, one hundred twelve thousand, three hundred four".