1303520050 has 144 divisors (see below), whose sum is σ = 3014985600. Its totient is φ = 419032320.

The previous prime is 1303520021. The next prime is 1303520059. The reversal of 1303520050 is 500253031.

It is not an unprimeable number, because it can be changed into a prime (1303520059) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4956219 + ... + 4956481.

It is an arithmetic number, because the mean of its divisors is an integer number (20937400).

Almost surely, 2^1303520050 is an apocalyptic number.

1303520050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1303520050 is an abundant number, since it is smaller than the sum of its proper divisors (1711465550).

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

1303520050 is a wasteful number, since it uses less digits than its factorization.

1303520050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 1303520050 is about 36104.2940659418. The cubic root of 1303520050 is about 1092.3770613286.

Adding to 1303520050 its reverse (500253031), we get a palindrome (1803773081).

The spelling of 1303520050 in words is "one billion, three hundred three million, five hundred twenty thousand, fifty".