1243011104 has 24 divisors (see below), whose sum is σ = 2506868028. Its totient is φ = 606346240.

The previous prime is 1243011089. The next prime is 1243011139. The reversal of 1243011104 is 4011103421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1200761104 + 42250000 = 34652^2 + 6500^2 .

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, 472397 + ... + 475020.

Almost surely, 2^1243011104 is an apocalyptic number.

It is an amenable number.

1243011104 is an abundant number, since it is smaller than the sum of its proper divisors (1263856924).

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

1243011104 is an equidigital number, since it uses as much as digits as its factorization.

1243011104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947468 (or 947460 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1243011104 is about 35256.3626030820. The cubic root of 1243011104 is about 1075.2059757469.

Adding to 1243011104 its reverse (4011103421), we get a palindrome (5254114525).

The spelling of 1243011104 in words is "one billion, two hundred forty-three million, eleven thousand, one hundred four".