1243233313 has 8 divisors (see below), whose sum is σ = 1428052032. Its totient is φ = 1060218096.

The previous prime is 1243233293. The next prime is 1243233317. The reversal of 1243233313 is 3133323421.

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

It is not a de Polignac number, because 1243233313 - 2¹³ = 1243225121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243233317) 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, 449395 + ... + 452152.

It is an arithmetic number, because the mean of its divisors is an integer number (178506504).

Almost surely, 2^1243233313 is an apocalyptic number.

It is an amenable number.

1243233313 is a deficient number, since it is larger than the sum of its proper divisors (184818719).

1243233313 is an equidigital number, since it uses as much as digits as its factorization.

1243233313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901751.

The product of its digits is 3888, while the sum is 25.

The square root of 1243233313 is about 35259.5137941521. The cubic root of 1243233313 is about 1075.2700422727.

Adding to 1243233313 its reverse (3133323421), we get a palindrome (4376556734).

The spelling of 1243233313 in words is "one billion, two hundred forty-three million, two hundred thirty-three thousand, three hundred thirteen".