1213435383 has 8 divisors (see below), whose sum is σ = 1618167168. Its totient is φ = 808830264.

The previous prime is 1213435381. The next prime is 1213435393. The reversal of 1213435383 is 3835343121.

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

It is not a de Polignac number, because 1213435383 - 2¹ = 1213435381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213435381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6441 + ... + 49682.

It is an arithmetic number, because the mean of its divisors is an integer number (202270896).

Almost surely, 2^1213435383 is an apocalyptic number.

1213435383 is a deficient number, since it is larger than the sum of its proper divisors (404731785).

1213435383 is an equidigital number, since it uses as much as digits as its factorization.

1213435383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63333.

The product of its digits is 25920, while the sum is 33.

The square root of 1213435383 is about 34834.3994206876. The cubic root of 1213435383 is about 1066.6097554380.

The spelling of 1213435383 in words is "one billion, two hundred thirteen million, four hundred thirty-five thousand, three hundred eighty-three".