1243253032 has 16 divisors (see below), whose sum is σ = 2664113760. Its totient is φ = 532822704.

The previous prime is 1243252991. The next prime is 1243253041. The reversal of 1243253032 is 2303523421.

It is a junction number, because it is equal to n+sod(n) for n = 1243252988 and 1243253006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11100418 + ... + 11100529.

It is an arithmetic number, because the mean of its divisors is an integer number (166507110).

Almost surely, 2^1243253032 is an apocalyptic number.

It is an amenable number.

1243253032 is an abundant number, since it is smaller than the sum of its proper divisors (1420860728).

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

1243253032 is a wasteful number, since it uses less digits than its factorization.

1243253032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22200960 (or 22200956 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1243253032 is about 35259.7934197011. The cubic root of 1243253032 is about 1075.2757272174.

Adding to 1243253032 its reverse (2303523421), we get a palindrome (3546776453).

The spelling of 1243253032 in words is "one billion, two hundred forty-three million, two hundred fifty-three thousand, thirty-two".