1213353112 has 16 divisors (see below), whose sum is σ = 2275416360. Its totient is φ = 606575424.

The previous prime is 1213353107. The next prime is 1213353131. The reversal of 1213353112 is 2113533121.

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, 70548 + ... + 86044.

Almost surely, 2^1213353112 is an apocalyptic number.

It is an amenable number.

1213353112 is a deficient number, since it is larger than the sum of its proper divisors (1062063248).

1213353112 is a wasteful number, since it uses less digits than its factorization.

1213353112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25290 (or 25286 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 1213353112 is about 34833.2185133674. The cubic root of 1213353112 is about 1066.5856494890.

Adding to 1213353112 its reverse (2113533121), we get a palindrome (3326886233).

Subtracting 1213353112 from its reverse (2113533121), we obtain a square (900180009 = 30003²).

The spelling of 1213353112 in words is "one billion, two hundred thirteen million, three hundred fifty-three thousand, one hundred twelve".