1213433512 has 32 divisors (see below), whose sum is σ = 2332154880. Its totient is φ = 591575040.

The previous prime is 1213433503. The next prime is 1213433513. The reversal of 1213433512 is 2153343121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1213433513) 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, 217753 + ... + 223255.

It is an arithmetic number, because the mean of its divisors is an integer number (72879840).

Almost surely, 2^1213433512 is an apocalyptic number.

It is an amenable number.

1213433512 is a deficient number, since it is larger than the sum of its proper divisors (1118721368).

1213433512 is a wasteful number, since it uses less digits than its factorization.

1213433512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193 (or 6189 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1213433512 is about 34834.3725650398. The cubic root of 1213433512 is about 1066.6092072347.

Adding to 1213433512 its reverse (2153343121), we get a palindrome (3366776633).

The spelling of 1213433512 in words is "one billion, two hundred thirteen million, four hundred thirty-three thousand, five hundred twelve".