1213202733 has 16 divisors (see below), whose sum is σ = 1680913920. Its totient is φ = 777397824.

The previous prime is 1213202723. The next prime is 1213202737. The reversal of 1213202733 is 3372023121.

It is not a de Polignac number, because 1213202733 - 2⁴ = 1213202717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213202737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11866 + ... + 50667.

It is an arithmetic number, because the mean of its divisors is an integer number (105057120).

Almost surely, 2^1213202733 is an apocalyptic number.

It is an amenable number.

1213202733 is a deficient number, since it is larger than the sum of its proper divisors (467711187).

1213202733 is a wasteful number, since it uses less digits than its factorization.

1213202733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62788.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1213202733 is about 34831.0598891277. The cubic root of 1213202733 is about 1066.5415846276.

Adding to 1213202733 its reverse (3372023121), we get a palindrome (4585225854).

The spelling of 1213202733 in words is "one billion, two hundred thirteen million, two hundred two thousand, seven hundred thirty-three".