1213403433 has 64 divisors (see below), whose sum is σ = 1895104512. Its totient is φ = 683369280.

The previous prime is 1213403417. The next prime is 1213403437. The reversal of 1213403433 is 3343043121.

It is not a de Polignac number, because 1213403433 - 2⁴ = 1213403417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213403437) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 5441160 + ... + 5441382.

It is an arithmetic number, because the mean of its divisors is an integer number (29611008).

Almost surely, 2^1213403433 is an apocalyptic number.

It is an amenable number.

1213403433 is a deficient number, since it is larger than the sum of its proper divisors (681701079).

1213403433 is a wasteful number, since it uses less digits than its factorization.

1213403433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1213403433 is about 34833.9408192642. The cubic root of 1213403433 is about 1066.6003940054.

Adding to 1213403433 its reverse (3343043121), we get a palindrome (4556446554).

The spelling of 1213403433 in words is "one billion, two hundred thirteen million, four hundred three thousand, four hundred thirty-three".