1201318828 has 12 divisors (see below), whose sum is σ = 2108166480. Its totient is φ = 598985552.

The previous prime is 1201318813. The next prime is 1201318837. The reversal of 1201318828 is 8288131021.

It is a junction number, because it is equal to n+sod(n) for n = 1201318793 and 1201318802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416851 + ... + 419722.

It is an arithmetic number, because the mean of its divisors is an integer number (175680540).

Almost surely, 2^1201318828 is an apocalyptic number.

It is an amenable number.

1201318828 is a deficient number, since it is larger than the sum of its proper divisors (906847652).

1201318828 is a wasteful number, since it uses less digits than its factorization.

1201318828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836936 (or 836934 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 1201318828 is about 34660.0465666162. The cubic root of 1201318828 is about 1063.0477221756.

Adding to 1201318828 its reverse (8288131021), we get a palindrome (9489449849).

The spelling of 1201318828 in words is "one billion, two hundred one million, three hundred eighteen thousand, eight hundred twenty-eight".