1243100352 has 112 divisors (see below), whose sum is σ = 3568517120. Its totient is φ = 379634688.

The previous prime is 1243100347. The next prime is 1243100357. The reversal of 1243100352 is 2530013421.

It is an interprime number because it is at equal distance from previous prime (1243100347) and next prime (1243100357).

It is not an unprimeable number, because it can be changed into a prime (1243100357) 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, 345153 + ... + 348735.

It is an arithmetic number, because the mean of its divisors is an integer number (31861760).

Almost surely, 2^1243100352 is an apocalyptic number.

1243100352 is a gapful number since it is divisible by the number (12) 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 1243100352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784258560).

1243100352 is an abundant number, since it is smaller than the sum of its proper divisors (2325416768).

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

1243100352 is a wasteful number, since it uses less digits than its factorization.

1243100352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750 (or 3740 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1243100352 is about 35257.6282809834. The cubic root of 1243100352 is about 1075.2317083371.

Adding to 1243100352 its reverse (2530013421), we get a palindrome (3773113773).

The spelling of 1243100352 in words is "one billion, two hundred forty-three million, one hundred thousand, three hundred fifty-two".