1211133004 has 24 divisors (see below), whose sum is σ = 2175329520. Its totient is φ = 589814016.

The previous prime is 1211132987. The next prime is 1211133013. The reversal of 1211133004 is 4003311121.

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 7 ways as a sum of consecutive naturals, for example, 1537 + ... + 49240.

It is an arithmetic number, because the mean of its divisors is an integer number (90638730).

Almost surely, 2^1211133004 is an apocalyptic number.

It is an amenable number.

1211133004 is a deficient number, since it is larger than the sum of its proper divisors (964196516).

1211133004 is a wasteful number, since it uses less digits than its factorization.

1211133004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50937 (or 50935 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1211133004 is about 34801.3362387136. The cubic root of 1211133004 is about 1065.9347312452.

Adding to 1211133004 its reverse (4003311121), we get a palindrome (5214444125).

The spelling of 1211133004 in words is "one billion, two hundred eleven million, one hundred thirty-three thousand, four".