1243352316 has 12 divisors (see below), whose sum is σ = 2901155432. Its totient is φ = 414450768.

The previous prime is 1243352303. The next prime is 1243352317. The reversal of 1243352316 is 6132533421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243352317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51806335 + ... + 51806358.

Almost surely, 2^1243352316 is an apocalyptic number.

It is an amenable number.

1243352316 is an abundant number, since it is smaller than the sum of its proper divisors (1657803116).

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

1243352316 is a wasteful number, since it uses less digits than its factorization.

1243352316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103612700 (or 103612698 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 1243352316 is about 35261.2012841310. The cubic root of 1243352316 is about 1075.3043496648.

Adding to 1243352316 its reverse (6132533421), we get a palindrome (7375885737).

The spelling of 1243352316 in words is "one billion, two hundred forty-three million, three hundred fifty-two thousand, three hundred sixteen".