1213033133 has 8 divisors (see below), whose sum is σ = 1363141248. Its totient is φ = 1071039024.

The previous prime is 1213033121. The next prime is 1213033201. The reversal of 1213033133 is 3313303121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213033133 - 2⁴ = 1213033117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213033033) 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, 2028185 + ... + 2028782.

It is an arithmetic number, because the mean of its divisors is an integer number (170392656).

Almost surely, 2^1213033133 is an apocalyptic number.

1213033133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213033133 is a deficient number, since it is larger than the sum of its proper divisors (150108115).

1213033133 is a wasteful number, since it uses less digits than its factorization.

1213033133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057003.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1213033133 is about 34828.6251953763. The cubic root of 1213033133 is about 1066.4918831563.

Adding to 1213033133 its reverse (3313303121), we get a palindrome (4526336254).

The spelling of 1213033133 in words is "one billion, two hundred thirteen million, thirty-three thousand, one hundred thirty-three".