1243201032 has 24 divisors (see below), whose sum is σ = 3367002990. Its totient is φ = 414400320.

The previous prime is 1243200979. The next prime is 1243201049. The reversal of 1243201032 is 2301023421.

It can be written as a sum of positive squares in only one way, i.e., 980566596 + 262634436 = 31314^2 + 16206^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1243200996 and 1243201014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8633269 + ... + 8633412.

Almost surely, 2^1243201032 is an apocalyptic number.

1243201032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243201032 is an abundant number, since it is smaller than the sum of its proper divisors (2123801958).

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

1243201032 is a wasteful number, since it uses less digits than its factorization.

1243201032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17266693 (or 17266686 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1243201032 is about 35259.0560282036. The cubic root of 1243201032 is about 1075.2607356011.

Adding to 1243201032 its reverse (2301023421), we get a palindrome (3544224453).

The spelling of 1243201032 in words is "one billion, two hundred forty-three million, two hundred one thousand, thirty-two".