1213435235312 has 20 divisors (see below), whose sum is σ = 2351058908016. Its totient is φ = 606710355840.

The previous prime is 1213435235303. The next prime is 1213435235321. The reversal of 1213435235312 is 2135325343121.

It is an interprime number because it is at equal distance from previous prime (1213435235303) and next prime (1213435235321).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1082237 + ... + 1896867.

Almost surely, 2^{1213435235312} is an apocalyptic number.

It is an amenable number.

1213435235312 is a deficient number, since it is larger than the sum of its proper divisors (1137623672704).

1213435235312 is an equidigital number, since it uses as much as digits as its factorization.

1213435235312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907736 (or 907730 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The spelling of 1213435235312 in words is "one trillion, two hundred thirteen billion, four hundred thirty-five million, two hundred thirty-five thousand, three hundred twelve".