1243341331 has 8 divisors (see below), whose sum is σ = 1287950400. Its totient is φ = 1198848000.

The previous prime is 1243341293. The next prime is 1243341347. The reversal of 1243341331 is 1331433421.

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

It is a cyclic number.

It is not a de Polignac number, because 1243341331 - 2¹³ = 1243333139 is a prime.

It is a super-2 number, since 2×1243341331² = 3091795330745703122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1243341296 and 1243341305.

It is not an unprimeable number, because it can be changed into a prime (1243341131) 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, 6766 + ... + 50323.

It is an arithmetic number, because the mean of its divisors is an integer number (160993800).

Almost surely, 2^1243341331 is an apocalyptic number.

1243341331 is a deficient number, since it is larger than the sum of its proper divisors (44609069).

1243341331 is an equidigital number, since it uses as much as digits as its factorization.

1243341331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57869.

The product of its digits is 2592, while the sum is 25.

The square root of 1243341331 is about 35261.0455176814. The cubic root of 1243341331 is about 1075.3011828893.

Adding to 1243341331 its reverse (1331433421), we get a palindrome (2574774752).

The spelling of 1243341331 in words is "one billion, two hundred forty-three million, three hundred forty-one thousand, three hundred thirty-one".