1213433000320 has 128 divisors (see below), whose sum is σ = 2932344192960. Its totient is φ = 480111230976.

The previous prime is 1213433000303. The next prime is 1213433000321. The reversal of 1213433000320 is 230003343121.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 1213433000291 and 1213433000300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213433000321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150043317 + ... + 150051403.

Almost surely, 2^{1213433000320} is an apocalyptic number.

1213433000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213433000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466172096480).

1213433000320 is an abundant number, since it is smaller than the sum of its proper divisors (1718911192640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213433000320 is an equidigital number, since it uses as much as digits as its factorization.

1213433000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10620 (or 10608 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1213433000320 its reverse (230003343121), we get a palindrome (1443436343441).

The spelling of 1213433000320 in words is "one trillion, two hundred thirteen billion, four hundred thirty-three million, three hundred twenty", and thus it is an aban number.